[Cleanup] Remove StringPrintf from global namespace

use of StringPrintf now requires prefixing with base:: or a per-scope using directive

TBR'd:
abodenha: chrome/service
brettw: content, third_party, webkit
darin: base, chrome/browser, chrome/renderer
dgarret: courgette
enne: cc
fischmann: media
gbillock: sql
joi: google_apis,components
rsleevi: net, crypto
sky: chrome/test
thestig: printing, chrome/common,
tsepez: ipc
wez: remoting
yfriedman: testing/android

NOTRY=true
R=brettw@chromium.org
TBR=joi@chromium.org, rsleevi@chromium.org, enne@chromium.org, thestig@chromium.org, darin@chromium.org, abodenha@chromium.org, sky@chromium.org, dgarret@chromium.org, tsepez@chromium.org, fishman@chromium.org, wez@chromium.org, gbillock@chromium.org, yfriedman@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12767006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@188857 0039d316-1c4b-4281-b951-d872f2087c98

android_webview/browser/aw_devtools_delegate.cc

@@ -26,7 +26,7 @@ AwDevToolsDelegate::AwDevToolsDelegate(content::BrowserContext* browser_context)
     : browser_context_(browser_context) {
   devtools_http_handler_ = content::DevToolsHttpHandler::Start(
       new net::UnixDomainSocketWithAbstractNamespaceFactory(
-          StringPrintf(kSocketNameFormat, getpid()),
+          base::StringPrintf(kSocketNameFormat, getpid()),
           base::Bind(&content::CanUserConnectToDevTools)),
       "",
       this);

ash/display/display_controller.cc

@@ -249,7 +249,7 @@ bool DisplayLayout::ConvertToValue(const DisplayLayout& layout,
 
 std::string DisplayLayout::ToString() const {
   const std::string position_str = GetStringFromPosition(position);
-  return StringPrintf("%s, %d", position_str.c_str(), offset);
+  return base::StringPrintf("%s, %d", position_str.c_str(), offset);
 }
 
 // static
@@ -768,7 +768,8 @@ aura::RootWindow* DisplayController::CreateRootWindowForDisplay(
   params.initial_insets = display_info.GetOverscanInsetsInPixel();
   params.initial_root_window_scale = display_info.ui_scale();
   aura::RootWindow* root_window = new aura::RootWindow(params);
-  root_window->SetName(StringPrintf("RootWindow-%d", root_window_count++));
+  root_window->SetName(
+      base::StringPrintf("RootWindow-%d", root_window_count++));
 
   // No need to remove RootWindowObserver because
   // the DisplayManager object outlives RootWindow objects.

ash/display/display_manager.cc

@@ -526,7 +526,8 @@ void DisplayManager::CycleDisplayImpl() {
     gfx::Rect host_bounds =
         gfx::Rect(primary->GetHostOrigin(),  primary->GetHostSize());
     new_display_info_list.push_back(DisplayInfo::CreateFromSpec(
-        StringPrintf("%d+%d-500x400", host_bounds.x(), host_bounds.bottom())));
+        base::StringPrintf(
+            "%d+%d-500x400", host_bounds.x(), host_bounds.bottom())));
   }
   UpdateDisplays(new_display_info_list);
 }

ash/display/display_manager_unittest.cc

@@ -23,6 +23,8 @@ namespace internal {
 using std::vector;
 using std::string;
 
+using base::StringPrintf;
+
 class DisplayManagerTest : public test::AshTestBase,
                            public gfx::DisplayObserver,
                            public aura::WindowObserver {

ash/magnifier/magnification_controller_unittest.cc

@@ -28,7 +28,7 @@ class MagnificationControllerTest: public test::AshTestBase {
 
   virtual void SetUp() OVERRIDE {
     AshTestBase::SetUp();
-    UpdateDisplay(StringPrintf("%dx%d", kRootWidth, kRootHeight));
+    UpdateDisplay(base::StringPrintf("%dx%d", kRootWidth, kRootHeight));
 
     aura::RootWindow* root = GetRootWindow();
     gfx::Rect root_bounds(root->bounds());

ash/system/monitor/tray_monitor.cc

@@ -65,12 +65,12 @@ void TrayMonitor::OnGotHandles(const std::list<base::ProcessHandle>& handles) {
   std::string output;
   string16 free_bytes =
       ui::FormatBytes(static_cast<int64>(mem_info.free) * 1024);
-  output = StringPrintf("free: %s", UTF16ToUTF8(free_bytes).c_str());
+  output = base::StringPrintf("free: %s", UTF16ToUTF8(free_bytes).c_str());
   if (mem_info.gem_size != -1) {
     string16 gem_size = ui::FormatBytes(mem_info.gem_size);
-    output += StringPrintf("  gmem: %s", UTF16ToUTF8(gem_size).c_str());
+    output += base::StringPrintf("  gmem: %s", UTF16ToUTF8(gem_size).c_str());
     if (mem_info.gem_objects != -1)
-      output += StringPrintf("  gobjects: %d", mem_info.gem_objects);
+      output += base::StringPrintf("  gobjects: %d", mem_info.gem_objects);
   }
   size_t total_private_bytes = 0, total_shared_bytes = 0;
   for (std::list<base::ProcessHandle>::const_iterator i = handles.begin();
@@ -85,9 +85,9 @@ void TrayMonitor::OnGotHandles(const std::list<base::ProcessHandle>& handles) {
   string16 private_size = ui::FormatBytes(total_private_bytes);
   string16 shared_size = ui::FormatBytes(total_shared_bytes);
 
-  output += StringPrintf("\nGPU private: %s  shared: %s",
-                         UTF16ToUTF8(private_size).c_str(),
-                         UTF16ToUTF8(shared_size).c_str());
+  output += base::StringPrintf("\nGPU private: %s  shared: %s",
+                               UTF16ToUTF8(private_size).c_str(),
+                               UTF16ToUTF8(shared_size).c_str());
   label_->SetText(UTF8ToUTF16(output));
   refresh_timer_.Start(FROM_HERE,
       base::TimeDelta::FromMilliseconds(kRefreshTimeoutMs),

ash/system/web_notification/web_notification_tray_unittest.cc

@@ -196,7 +196,7 @@ TEST_F(WebNotificationTrayTest, ManyMessageCenterNotifications) {
   size_t notifications_to_add =
       NotificationList::kMaxVisibleMessageCenterNotifications + 1;
   for (size_t i = 0; i < notifications_to_add; ++i) {
-    std::string id = StringPrintf("test_id%d", static_cast<int>(i));
+    std::string id = base::StringPrintf("test_id%d", static_cast<int>(i));
     delegate->AddNotification(tray, id);
   }
   bool shown = tray->message_center_tray_->ShowMessageCenterBubble();
@@ -217,7 +217,7 @@ TEST_F(WebNotificationTrayTest, ManyPopupNotifications) {
   size_t notifications_to_add =
       NotificationList::kMaxVisiblePopupNotifications + 1;
   for (size_t i = 0; i < notifications_to_add; ++i) {
-    std::string id = StringPrintf("test_id%d", static_cast<int>(i));
+    std::string id = base::StringPrintf("test_id%d", static_cast<int>(i));
     delegate->AddNotification(tray, id);
   }
   // Hide and reshow the bubble so that it is updated immediately, not delayed.

ash/wm/drag_window_resizer_unittest.cc

@@ -37,7 +37,7 @@ class DragWindowResizerTest : public test::AshTestBase {
 
   virtual void SetUp() OVERRIDE {
     AshTestBase::SetUp();
-    UpdateDisplay(StringPrintf("800x%d", kRootHeight));
+    UpdateDisplay(base::StringPrintf("800x%d", kRootHeight));
 
     aura::RootWindow* root = Shell::GetPrimaryRootWindow();
     gfx::Rect root_bounds(root->bounds());

ash/wm/workspace/workspace_window_resizer_unittest.cc

@@ -70,7 +70,7 @@ class WorkspaceWindowResizerTest : public test::AshTestBase {
 
   virtual void SetUp() OVERRIDE {
     AshTestBase::SetUp();
-    UpdateDisplay(StringPrintf("800x%d", kRootHeight));
+    UpdateDisplay(base::StringPrintf("800x%d", kRootHeight));
 
     aura::RootWindow* root = Shell::GetPrimaryRootWindow();
     gfx::Rect root_bounds(root->bounds());

base/debug/trace_event_android.cc

@@ -25,7 +25,7 @@ void WriteEvent(char phase,
                 const unsigned char* arg_types,
                 const unsigned long long* arg_values,
                 unsigned char flags) {
-  std::string out = StringPrintf("%c|%d|%s", phase, getpid(), name);
+  std::string out = base::StringPrintf("%c|%d|%s", phase, getpid(), name);
   if (flags & TRACE_EVENT_FLAG_HAS_ID)
     base::StringAppendF(&out, "-%" PRIx64, static_cast<uint64>(id));
   out += '|';
@@ -109,7 +109,7 @@ void TraceLog::SendToATrace(char phase,
     case TRACE_EVENT_PHASE_COUNTER:
       for (int i = 0; i < num_args; ++i) {
         DCHECK(arg_types[i] == TRACE_VALUE_TYPE_INT);
-        std::string out = StringPrintf("C|%d|%s-%s",
+        std::string out = base::StringPrintf("C|%d|%s-%s",
                                        getpid(), name, arg_names[i]);
         if (flags & TRACE_EVENT_FLAG_HAS_ID)
           StringAppendF(&out, "-%" PRIx64, static_cast<uint64>(id));

base/file_util.cc

@@ -278,7 +278,8 @@ int GetUniquePathNumber(
 
   FilePath new_path;
   for (int count = 1; count <= kMaxUniqueFiles; ++count) {
-    new_path = path.InsertBeforeExtensionASCII(StringPrintf(" (%d)", count));
+    new_path =
+        path.InsertBeforeExtensionASCII(base::StringPrintf(" (%d)", count));
     if (!PathExists(new_path) &&
         (!have_suffix || !PathExists(FilePath(new_path.value() + suffix)))) {
       return count;

base/file_util_posix.cc

@@ -140,7 +140,7 @@ bool VerifySpecificPathControlledByUser(const FilePath& path,
 
 static std::string TempFileName() {
 #if defined(OS_MACOSX)
-  return StringPrintf(".%s.XXXXXX", base::mac::BaseBundleID());
+  return base::StringPrintf(".%s.XXXXXX", base::mac::BaseBundleID());
 #endif
 
 #if defined(GOOGLE_CHROME_BUILD)

base/os_compat_android.cc

@@ -18,7 +18,7 @@
 extern "C" {
 
 int futimes(int fd, const struct timeval tv[2]) {
-  const std::string fd_path = StringPrintf("/proc/self/fd/%d", fd);
+  const std::string fd_path = base::StringPrintf("/proc/self/fd/%d", fd);
   return utimes(fd_path.c_str(), tv);
 }
 

base/process_linux.cc

@@ -42,8 +42,10 @@ struct CGroups {
   base::FilePath background_file;
 
   CGroups() {
-    foreground_file = base::FilePath(StringPrintf(kControlPath, kForeground));
-    background_file = base::FilePath(StringPrintf(kControlPath, kBackground));
+    foreground_file =
+        base::FilePath(base::StringPrintf(kControlPath, kForeground));
+    background_file =
+        base::FilePath(base::StringPrintf(kControlPath, kBackground));
     file_util::FileSystemType foreground_type;
     file_util::FileSystemType background_type;
     enabled =

base/stringprintf.h

@@ -59,10 +59,4 @@ BASE_EXPORT void StringAppendV(std::wstring* dst,
 
 }  // namespace base
 
-// Don't require the namespace for legacy code. New code should use "base::" or
-// have its own using decl.
-//
-// TODO(brettw) remove these when calling code is converted.
-using base::StringPrintf;
-
 #endif  // BASE_STRINGPRINTF_H_

cc/base/worker_pool.cc

@@ -183,7 +183,7 @@ WorkerPool::Inner::Inner(WorkerPool* worker_pool,
         new base::DelegateSimpleThread(
           this,
           thread_name_prefix +
-          StringPrintf("Worker%lu", workers_.size() + 1).c_str()));
+          base::StringPrintf("Worker%lu", workers_.size() + 1).c_str()));
     worker->Start();
     workers_.push_back(worker.Pass());
   }

cc/trees/layer_tree_host_impl.cc

@@ -1909,7 +1909,7 @@ scoped_ptr<base::Value> LayerTreeHostImpl::AsValue() const {
 
 scoped_ptr<base::Value> LayerTreeHostImpl::ActivationStateAsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
-  state->SetString("lthi_id", StringPrintf("%p", this));
+  state->SetString("lthi_id", base::StringPrintf("%p", this));
   state->SetBoolean("visible_resources_ready",
                     pending_tree_->AreVisibleResourcesReady());
   state->Set("tile_manager", tile_manager_->BasicStateAsValue().release());
@@ -1918,7 +1918,7 @@ scoped_ptr<base::Value> LayerTreeHostImpl::ActivationStateAsValue() const {
 
 scoped_ptr<base::Value> LayerTreeHostImpl::FrameStateAsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
-  state->SetString("lthi_id", StringPrintf("%p", this));
+  state->SetString("lthi_id", base::StringPrintf("%p", this));
   state->Set("device_viewport_size",
              MathUtil::AsValue(device_viewport_size_).release());
   if (tile_manager_)

chrome/browser/android/dev_tools_server.cc

@@ -129,7 +129,8 @@ void DevToolsServer::Start() {
           socket_name_,
           base::Bind(&content::CanUserConnectToDevTools)),
       use_bundled_frontend_resources_ ?
-          "" : StringPrintf(kFrontEndURL, version_info.Version().c_str()),
+          "" :
+          base::StringPrintf(kFrontEndURL, version_info.Version().c_str()),
       new DevToolsServerDelegate(use_bundled_frontend_resources_));
 }
 

chrome/browser/autocomplete/autocomplete_match.cc

@@ -450,7 +450,7 @@ void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,
 
 void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,
                                              int value) {
-  RecordAdditionalInfo(property, StringPrintf("%d", value));
+  RecordAdditionalInfo(property, base::StringPrintf("%d", value));
 }
 
 void AutocompleteMatch::RecordAdditionalInfo(const std::string& property,

chrome/browser/automation/automation_provider_observers.cc

@@ -357,8 +357,8 @@ void NavigationNotificationObserver::ConditionMet(
             &dict);
       } else {
         AutomationJSONReply(automation_, reply_message_.release()).SendError(
-            StringPrintf("Navigation failed with error code=%d.",
-                         navigation_result));
+            base::StringPrintf("Navigation failed with error code=%d.",
+                               navigation_result));
       }
     } else {
       IPC::ParamTraits<int>::Write(

chrome/browser/automation/testing_automation_provider.cc

@@ -210,7 +210,7 @@ void DidEnablePlugin(base::WeakPtr<AutomationProvider> automation,
   } else {
     if (automation) {
       AutomationJSONReply(automation.get(), reply_message).SendError(
-          StringPrintf(error_msg.c_str(), path.c_str()));
+          base::StringPrintf(error_msg.c_str(), path.c_str()));
     }
   }
 }
@@ -1160,7 +1160,7 @@ void TestingAutomationProvider::OpenProfileWindow(
   Profile* profile = profile_manager->GetProfileByPath(base::FilePath(path));
   if (!profile) {
     AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Invalid profile path: %s", path.c_str()));
+        base::StringPrintf("Invalid profile path: %s", path.c_str()));
     return;
   }
   int num_loads;
@@ -1991,8 +1991,8 @@ void TestingAutomationProvider::SendJSONRequestWithBrowserIndex(
     IPC::Message* reply_message) {
   Browser* browser = index < 0 ? NULL : automation_util::GetBrowserAt(index);
   if (!browser && index >= 0) {
-    AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Browser window with index=%d does not exist.", index));
+    AutomationJSONReply(this, reply_message).SendError(base::StringPrintf(
+        "Browser window with index=%d does not exist.", index));
   } else {
     SendJSONRequest(browser, json_request, reply_message);
   }
@@ -2022,8 +2022,8 @@ void TestingAutomationProvider::SendJSONRequest(Browser* browser,
     (this->*handler_map_[command])(dict_value.get(), reply_message);
   // Command has no handler.
   } else {
-    error_string = StringPrintf("Unknown command '%s'. Options: ",
-                                command.c_str());
+    error_string = base::StringPrintf("Unknown command '%s'. Options: ",
+                                      command.c_str());
     for (std::map<std::string, JsonHandler>::const_iterator it =
          handler_map_.begin(); it != handler_map_.end(); ++it) {
       error_string += it->first + ", ";
@@ -2151,7 +2151,7 @@ void TestingAutomationProvider::PerformActionOnInfobar(
   WebContents* web_contents =
       browser->tab_strip_model()->GetWebContentsAt(tab_index);
   if (!web_contents) {
-    reply.SendError(StringPrintf("No such tab at index %d", tab_index));
+    reply.SendError(base::StringPrintf("No such tab at index %d", tab_index));
     return;
   }
   InfoBarService* infobar_service =
@@ -2160,8 +2160,8 @@ void TestingAutomationProvider::PerformActionOnInfobar(
   InfoBarDelegate* infobar = NULL;
   size_t infobar_index = static_cast<size_t>(infobar_index_int);
   if (infobar_index >= infobar_service->GetInfoBarCount()) {
-    reply.SendError(StringPrintf("No such infobar at index %" PRIuS,
-                                 infobar_index));
+    reply.SendError(base::StringPrintf("No such infobar at index %" PRIuS,
+                                       infobar_index));
     return;
   }
   infobar = infobar_service->GetInfoBarDelegateAt(infobar_index);
@@ -2560,7 +2560,8 @@ void TestingAutomationProvider::WaitForAllDownloadsToComplete(
 
   if (!args->GetList("pre_download_ids", &pre_download_ids)) {
     AutomationJSONReply(this, reply_message)
-        .SendError(StringPrintf("List of IDs of previous downloads required."));
+        .SendError(
+            base::StringPrintf("List of IDs of previous downloads required."));
     return;
   }
 
@@ -2605,7 +2606,7 @@ void TestingAutomationProvider::PerformActionOnDownload(
   DownloadItem* selected_item = download_manager->GetDownload(id);
   if (!selected_item) {
     AutomationJSONReply(this, reply_message)
-        .SendError(StringPrintf("No download with an id of %d\n", id));
+        .SendError(base::StringPrintf("No download with an id of %d\n", id));
     return;
   }
 
@@ -2680,7 +2681,8 @@ void TestingAutomationProvider::PerformActionOnDownload(
     selected_item->Cancel(true);
   } else {
     AutomationJSONReply(this, reply_message)
-        .SendError(StringPrintf("Invalid action '%s' given.", action.c_str()));
+        .SendError(
+            base::StringPrintf("Invalid action '%s' given.", action.c_str()));
   }
 }
 
@@ -3457,7 +3459,7 @@ WebContents* GetWebContentsFromDict(const Browser* browser,
   WebContents* web_contents =
       browser->tab_strip_model()->GetWebContentsAt(tab_index);
   if (!web_contents) {
-    *error_message = StringPrintf("No tab at index %d.", tab_index);
+    *error_message = base::StringPrintf("No tab at index %d.", tab_index);
     return NULL;
   }
   return web_contents;
@@ -3904,7 +3906,7 @@ void TestingAutomationProvider::TriggerBrowserActionById(
   // TODO(kkania): Implement the platform-specific GetExtensionId() in
   // BrowserActionTestUtil.
   if (num_browser_actions != 1) {
-    AutomationJSONReply(this, reply_message).SendError(StringPrintf(
+    AutomationJSONReply(this, reply_message).SendError(base::StringPrintf(
         "Found %d browser actions. Only one browser action must be active.",
         num_browser_actions));
     return;
@@ -4150,7 +4152,7 @@ void TestingAutomationProvider::CloseNotification(
   int balloon_count = static_cast<int>(balloons.size());
   if (index < 0 || index >= balloon_count) {
     AutomationJSONReply(this, reply_message)
-        .SendError(StringPrintf("No notification at index %d", index));
+        .SendError(base::StringPrintf("No notification at index %d", index));
     return;
   }
   std::vector<const Notification*> queued_notes;
@@ -4600,8 +4602,9 @@ void TestingAutomationProvider::LaunchApp(
       id, false  /* do not include disabled extensions */);
   if (!extension) {
     AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Extension with ID '%s' doesn't exist or is disabled.",
-                     id.c_str()));
+        base::StringPrintf(
+            "Extension with ID '%s' doesn't exist or is disabled.",
+            id.c_str()));
     return;
   }
 
@@ -4652,8 +4655,8 @@ void TestingAutomationProvider::SetAppLaunchType(
   const Extension* extension = service->GetExtensionById(
       id, true  /* include disabled extensions */);
   if (!extension) {
-    reply.SendError(
-        StringPrintf("Extension with ID '%s' doesn't exist.", id.c_str()));
+    reply.SendError(base::StringPrintf(
+        "Extension with ID '%s' doesn't exist.", id.c_str()));
     return;
   }
 
@@ -4667,8 +4670,8 @@ void TestingAutomationProvider::SetAppLaunchType(
   } else if (launch_type_str == "window") {
     launch_type = extensions::ExtensionPrefs::LAUNCH_WINDOW;
   } else {
-    reply.SendError(
-        StringPrintf("Unexpected launch type '%s'.", launch_type_str.c_str()));
+    reply.SendError(base::StringPrintf(
+        "Unexpected launch type '%s'.", launch_type_str.c_str()));
     return;
   }
 
@@ -4696,8 +4699,8 @@ void TestingAutomationProvider::GetV8HeapStats(
 
   web_contents = browser->tab_strip_model()->GetWebContentsAt(tab_index);
   if (!web_contents) {
-    AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Could not get WebContents at tab index %d", tab_index));
+    AutomationJSONReply(this, reply_message).SendError(base::StringPrintf(
+        "Could not get WebContents at tab index %d", tab_index));
     return;
   }
 
@@ -4730,8 +4733,8 @@ void TestingAutomationProvider::GetFPS(
 
   web_contents = browser->tab_strip_model()->GetWebContentsAt(tab_index);
   if (!web_contents) {
-    AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Could not get WebContents at tab index %d", tab_index));
+    AutomationJSONReply(this, reply_message).SendError(base::StringPrintf(
+        "Could not get WebContents at tab index %d", tab_index));
     return;
   }
 
@@ -5262,12 +5265,13 @@ void TestingAutomationProvider::ExecuteBrowserCommandAsyncJSON(
     return;
   }
   if (!chrome::SupportsCommand(browser, command)) {
-    reply.SendError(StringPrintf("Browser does not support command=%d.",
-                                 command));
+    reply.SendError(base::StringPrintf("Browser does not support command=%d.",
+                                       command));
     return;
   }
   if (!chrome::IsCommandEnabled(browser, command)) {
-    reply.SendError(StringPrintf("Browser command=%d not enabled.", command));
+    reply.SendError(base::StringPrintf(
+        "Browser command=%d not enabled.", command));
     return;
   }
   chrome::ExecuteCommand(browser, command);
@@ -5291,12 +5295,12 @@ void TestingAutomationProvider::ExecuteBrowserCommandJSON(
   }
   if (!chrome::SupportsCommand(browser, command)) {
     AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Browser does not support command=%d.", command));
+        base::StringPrintf("Browser does not support command=%d.", command));
     return;
   }
   if (!chrome::IsCommandEnabled(browser, command)) {
     AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Browser command=%d not enabled.", command));
+        base::StringPrintf("Browser command=%d not enabled.", command));
     return;
   }
   // First check if we can handle the command without using an observer.
@@ -5313,9 +5317,8 @@ void TestingAutomationProvider::ExecuteBrowserCommandJSON(
     chrome::ExecuteCommand(browser, command);
     return;
   }
-  AutomationJSONReply(this, reply_message).SendError(
-        StringPrintf("Unable to register observer for browser command=%d.",
-                     command));
+  AutomationJSONReply(this, reply_message).SendError(base::StringPrintf(
+      "Unable to register observer for browser command=%d.", command));
 }
 
 void TestingAutomationProvider::IsMenuCommandEnabledJSON(
@@ -5494,8 +5497,8 @@ void TestingAutomationProvider::GetCookiesInBrowserContext(
   automation_util::GetCookies(url, web_contents, &value_size, &value);
   if (value_size == -1) {
     reply.SendError(
-        StringPrintf("Unable to retrieve cookies for url=%s.",
-                     url_string.c_str()));
+        base::StringPrintf("Unable to retrieve cookies for url=%s.",
+                           url_string.c_str()));
     return;
   }
   DictionaryValue dict;
@@ -5536,8 +5539,8 @@ void TestingAutomationProvider::DeleteCookieInBrowserContext(
   automation_util::DeleteCookie(url, cookie_name, web_contents, &success);
   if (!success) {
     reply.SendError(
-        StringPrintf("Failed to delete cookie with name=%s for url=%s.",
-                     cookie_name.c_str(), url_string.c_str()));
+        base::StringPrintf("Failed to delete cookie with name=%s for url=%s.",
+                           cookie_name.c_str(), url_string.c_str()));
     return;
   }
   reply.SendSuccess(NULL);
@@ -5574,8 +5577,8 @@ void TestingAutomationProvider::SetCookieInBrowserContext(
   }
   automation_util::SetCookie(url, value, web_contents, &response_value);
   if (response_value != 1) {
-    reply.SendError(
-        StringPrintf("Unable set cookie for url=%s.", url_string.c_str()));
+    reply.SendError(base::StringPrintf(
+        "Unable set cookie for url=%s.", url_string.c_str()));
     return;
   }
   reply.SendSuccess(NULL);

chrome/browser/automation/testing_automation_provider_chromeos.cc

@@ -1067,8 +1067,8 @@ void TestingAutomationProvider::ConnectToPrivateNetwork(
   chromeos::VirtualNetwork* network =
       network_library->FindVirtualNetworkByPath(service_path);
   if (!network) {
-    reply.SendError(StringPrintf("No virtual network found: %s",
-                                 service_path.c_str()));
+    reply.SendError(base::StringPrintf("No virtual network found: %s",
+                                       service_path.c_str()));
     return;
   }
   if (network->NeedMoreInfoToConnect()) {

chrome/browser/chromeos/boot_times_loader.cc

@@ -359,7 +359,7 @@ void BootTimesLoader::WriteTimes(
       name = tm.name();
     }
     output +=
-        StringPrintf(
+        base::StringPrintf(
             "\n%.2f +%.4f %s",
             since_first.InSecondsF(),
             since_prev.InSecondsF(),

chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc

@@ -46,12 +46,11 @@ class SetInputMethodListener : public content::NotificationObserver {
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE {
     const std::string& content = *content::Details<std::string>(details).ptr();
-    const std::string expected_message = StringPrintf("%s:%s",
-                                                      kSetInputMethodMessage,
-                                                      kNewInputMethod);
+    const std::string expected_message =
+        base::StringPrintf("%s:%s", kSetInputMethodMessage, kNewInputMethod);
     if (content == expected_message) {
       chromeos::input_method::GetInputMethodManager()->
-          ChangeInputMethod(StringPrintf("xkb:%s", kNewInputMethod));
+          ChangeInputMethod(base::StringPrintf("xkb:%s", kNewInputMethod));
 
       extensions::TestSendMessageFunction* function =
           content::Source<extensions::TestSendMessageFunction>(

chrome/browser/chromeos/login/default_user_images.cc

@@ -76,7 +76,7 @@ std::string GetDefaultImageString(int index, const std::string& prefix) {
     NOTREACHED();
     return std::string();
   }
-  return StringPrintf("%s%d", prefix.c_str(), index);
+  return base::StringPrintf("%s%d", prefix.c_str(), index);
 }
 
 // Returns true if the string specified consists of the prefix and one of

chrome/browser/chromeos/login/screen_locker_tester.cc

@@ -120,7 +120,7 @@ class WebUIScreenLockerTester : public ScreenLockerTester {
 void WebUIScreenLockerTester::SetPassword(const std::string& password) {
   RenderViewHost()->ExecuteJavascriptInWebFrame(
       string16(),
-      ASCIIToUTF16(StringPrintf(
+      ASCIIToUTF16(base::StringPrintf(
           "$('pod-row').pods[0].passwordElement.value = '%s';",
           password.c_str())));
 }

chrome/browser/chromeos/proxy_config_service_impl_unittest.cc

@@ -345,7 +345,7 @@ class ProxyConfigServiceImplTest
 
 TEST_F(ProxyConfigServiceImplTest, NetworkProxy) {
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
-    SCOPED_TRACE(StringPrintf("Test[%" PRIuS "] %s", i,
+    SCOPED_TRACE(base::StringPrintf("Test[%" PRIuS "] %s", i,
                               tests[i].description.c_str()));
 
     ProxyConfigServiceImpl::ProxyConfig test_config;
@@ -363,7 +363,7 @@ TEST_F(ProxyConfigServiceImplTest, NetworkProxy) {
 
 TEST_F(ProxyConfigServiceImplTest, ModifyFromUI) {
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
-    SCOPED_TRACE(StringPrintf("Test[%" PRIuS "] %s", i,
+    SCOPED_TRACE(base::StringPrintf("Test[%" PRIuS "] %s", i,
                               tests[i].description.c_str()));
 
     // Init with direct.
@@ -484,7 +484,7 @@ TEST_F(ProxyConfigServiceImplTest, DynamicPrefsOverride) {
     const TestParams& recommended_params = tests[proxies[i][1]];
     const TestParams& network_params = tests[proxies[i][2]];
 
-    SCOPED_TRACE(StringPrintf(
+    SCOPED_TRACE(base::StringPrintf(
         "Test[%" PRIuS "] managed=[%s], recommended=[%s], network=[%s]", i,
         managed_params.description.c_str(),
         recommended_params.description.c_str(),

chrome/browser/chromeos/sim_dialog_delegate.cc

@@ -76,7 +76,8 @@ GURL SimDialogDelegate::GetDialogContentURL() const {
       mode_value = kSimDialogSetLockOnMode;
     else
       mode_value = kSimDialogSetLockOffMode;
-    return GURL(StringPrintf(kSimDialogSpecialModeURL, mode_value.c_str()));
+    return GURL(
+        base::StringPrintf(kSimDialogSpecialModeURL, mode_value.c_str()));
   }
 }
 

chrome/browser/chromeos/status/network_menu.cc

@@ -938,7 +938,7 @@ void NetworkMenu::ShowTabbedNetworkSettings(const Network* network) const {
     network_name = l10n_util::GetStringUTF8(
         IDS_STATUSBAR_NETWORK_DEVICE_ETHERNET);
   }
-  std::string page = StringPrintf(
+  std::string page = base::StringPrintf(
       "%s?servicePath=%s&networkType=%d&networkName=%s",
       chrome::kInternetOptionsSubPage,
       net::EscapeUrlEncodedData(network->service_path(), true).c_str(),

chrome/browser/chromeos/system/input_device_settings.cc

@@ -65,7 +65,8 @@ void ExecuteScript(int argc, ...) {
 void SetPointerSensitivity(const char* script, int value) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   DCHECK(value > 0 && value < 6);
-  ExecuteScript(3, script, "sensitivity", StringPrintf("%d", value).c_str());
+  ExecuteScript(
+      3, script, "sensitivity", base::StringPrintf("%d", value).c_str());
 }
 
 void SetTPControl(const char* control, bool enabled) {

chrome/browser/component_updater/component_unpacker.cc

@@ -136,7 +136,8 @@ ComponentUnpacker::ComponentUnpacker(const std::vector<uint8>& pk_hash,
   }
   // We want the temporary directory to be unique and yet predictable, so
   // we can easily find the package in a end user machine.
-  std::string dir(StringPrintf("CRX_%s", base::HexEncode(hash, 6).c_str()));
+  std::string dir(
+      base::StringPrintf("CRX_%s", base::HexEncode(hash, 6).c_str()));
   unpack_path_ = path.DirName().AppendASCII(dir.c_str());
   if (file_util::DirectoryExists(unpack_path_)) {
     if (!file_util::Delete(unpack_path_, true)) {

chrome/browser/component_updater/pepper_flash_component_installer.cc

@@ -150,7 +150,7 @@ bool MakePepperFlashPluginInfo(const base::FilePath& flash_path,
   plugin_info->permissions = kPepperFlashPermissions;
 
   // The description is like "Shockwave Flash 10.2 r154".
-  plugin_info->description = StringPrintf("%s %d.%d r%d",
+  plugin_info->description = base::StringPrintf("%s %d.%d r%d",
       kFlashPluginName, ver_nums[0], ver_nums[1], ver_nums[2]);
 
   plugin_info->version = flash_version.GetString();

chrome/browser/devtools/devtools_window.cc

@@ -611,7 +611,7 @@ void DevToolsWindow::DoAction() {
 std::string SkColorToRGBAString(SkColor color) {
   // We convert the alpha using DoubleToString because StringPrintf will use
   // locale specific formatters (e.g., use , instead of . in German).
-  return StringPrintf("rgba(%d,%d,%d,%s)", SkColorGetR(color),
+  return base::StringPrintf("rgba(%d,%d,%d,%s)", SkColorGetR(color),
       SkColorGetG(color), SkColorGetB(color),
       base::DoubleToString(SkColorGetA(color) / 255.0).c_str());
 }
@@ -632,7 +632,7 @@ GURL DevToolsWindow::GetDevToolsUrl(Profile* profile,
   bool experiments_enabled =
       command_line.HasSwitch(switches::kEnableDevToolsExperiments);
 
-  std::string url_string = StringPrintf("%sdevtools.html?"
+  std::string url_string = base::StringPrintf("%sdevtools.html?"
       "dockSide=%s&toolbarColor=%s&textColor=%s%s%s",
       chrome::kChromeUIDevToolsURL,
       SideToString(dock_side).c_str(),
@@ -651,7 +651,7 @@ void DevToolsWindow::UpdateTheme() {
       tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
   SkColor color_tab_text =
       tp->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT);
-  std::string command = StringPrintf(
+  std::string command = base::StringPrintf(
       "InspectorFrontendAPI.setToolbarColors(\"%s\", \"%s\")",
       SkColorToRGBAString(color_toolbar).c_str(),
       SkColorToRGBAString(color_tab_text).c_str());

chrome/browser/download/download_browsertest.cc

@@ -2723,8 +2723,9 @@ IN_PROC_BROWSER_TEST_F(DownloadTest, DownloadTest_Renaming) {
     ASSERT_TRUE(item);
     ASSERT_TRUE(item->IsComplete());
     base::FilePath full_path(item->GetFullPath());
-    EXPECT_EQ(std::string("a_zip_file") + (index == 0 ? std::string(".zip") :
-                                           StringPrintf(" (%d).zip", index)),
+    EXPECT_EQ(std::string("a_zip_file") +
+        (index == 0 ? std::string(".zip") :
+                      base::StringPrintf(" (%d).zip", index)),
               full_path.BaseName().AsUTF8Unsafe());
     ASSERT_TRUE(file_util::PathExists(full_path));
     ASSERT_TRUE(VerifyFile(full_path, origin_contents, origin_contents.size()));

chrome/browser/download/download_path_reservation_tracker_unittest.cc

@@ -340,10 +340,12 @@ TEST_F(DownloadPathReservationTrackerTest, UnresolvedConflicts) {
     base::FilePath reserved_path;
     base::FilePath expected_path;
     bool verified = false;
-    if (i > 0)
-      expected_path = path.InsertBeforeExtensionASCII(StringPrintf(" (%d)", i));
-    else
+    if (i > 0) {
+      expected_path =
+          path.InsertBeforeExtensionASCII(base::StringPrintf(" (%d)", i));
+    } else {
       expected_path = path;
+    }
     items[i].reset(CreateDownloadItem(i));
     EXPECT_FALSE(IsPathInUse(expected_path));
     CallGetReservedPath(*items[i], path, true, &reserved_path, &verified);

chrome/browser/extensions/api/declarative/initializing_rules_registry.cc

@@ -10,7 +10,7 @@
 
 namespace {
 std::string ToId(int identifier) {
-  return StringPrintf("_%d_", identifier);
+  return base::StringPrintf("_%d_", identifier);
 }
 }  // namespace
 

chrome/browser/extensions/api/declarative/rules_registry_with_cache.cc

@@ -41,7 +41,7 @@ std::string RulesRegistryWithCache::AddRules(
     const RuleId& rule_id = *((*i)->id);
     RulesDictionaryKey key(extension_id, rule_id);
     if (rules_.find(key) != rules_.end())
-      return StringPrintf(kDuplicateRuleId, rule_id.c_str());
+      return base::StringPrintf(kDuplicateRuleId, rule_id.c_str());
   }
 
   std::string error = AddRulesImpl(extension_id, rules);

chrome/browser/extensions/api/font_settings/font_settings_api.cc

@@ -67,9 +67,9 @@ std::string GetFontNamePrefPath(fonts::GenericFamily generic_family_enum,
   if (script.empty())
     script = prefs::kWebKitCommonScript;
   std::string generic_family = fonts::ToString(generic_family_enum);
-  return StringPrintf(kWebKitFontPrefFormat,
-                      generic_family.c_str(),
-                      script.c_str());
+  return base::StringPrintf(kWebKitFontPrefFormat,
+                            generic_family.c_str(),
+                            script.c_str());
 }
 
 // Returns the localized name of a font so that it can be matched within the

chrome/browser/extensions/api/push_messaging/push_messaging_canary_test.cc

@@ -93,7 +93,7 @@ class PushMessagingCanaryTest : public ExtensionApiTest {
     const std::string& refresh_token = sync_setup_helper_->refresh_token();
 
     // Construct a JS string to pass in the parameters and start the test.
-    std::string script_string = StringPrintf(
+    std::string script_string = base::StringPrintf(
         "startTestWithCredentials('%s', '%s', '%s');",
         client_id.c_str(), client_secret.c_str(), refresh_token.c_str());
     string16 script16 = UTF8ToUTF16(script_string);

chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc

@@ -68,7 +68,7 @@ IN_PROC_BROWSER_TEST_F(TabCaptureApiTest, GetUserMediaTest) {
   int render_process_id = rvh->GetProcess()->GetID();
   int routing_id = rvh->GetRoutingID();
 
-  listener.Reply(StringPrintf("%i:%i", render_process_id, routing_id));
+  listener.Reply(base::StringPrintf("%i:%i", render_process_id, routing_id));
 
   ResultCatcher catcher;
   catcher.RestrictToProfile(browser()->profile());

chrome/browser/extensions/convert_web_app.cc

@@ -122,9 +122,9 @@ scoped_refptr<Extension> ConvertWebAppToExtension(
   DictionaryValue* icons = new DictionaryValue();
   root->Set(keys::kIcons, icons);
   for (size_t i = 0; i < web_app.icons.size(); ++i) {
-    std::string size = StringPrintf("%i", web_app.icons[i].width);
-    std::string icon_path = StringPrintf("%s/%s.png", kIconsDirName,
-                                         size.c_str());
+    std::string size = base::StringPrintf("%i", web_app.icons[i].width);
+    std::string icon_path = base::StringPrintf("%s/%s.png", kIconsDirName,
+                                               size.c_str());
     icons->SetString(size, icon_path);
   }
 
@@ -163,7 +163,7 @@ scoped_refptr<Extension> ConvertWebAppToExtension(
       continue;
 
     base::FilePath icon_file = icons_dir.AppendASCII(
-        StringPrintf("%i.png", web_app.icons[i].width));
+        base::StringPrintf("%i.png", web_app.icons[i].width));
     std::vector<unsigned char> image_data;
     if (!gfx::PNGCodec::EncodeBGRASkBitmap(web_app.icons[i].data,
                                            false,

chrome/browser/extensions/convert_web_app_unittest.cc

@@ -44,7 +44,7 @@ WebApplicationInfo::IconInfo GetIconInfo(const GURL& url, int size) {
 
   icon_file = icon_file.AppendASCII("extensions")
                        .AppendASCII("convert_web_app")
-                       .AppendASCII(StringPrintf("%i.png", size));
+                       .AppendASCII(base::StringPrintf("%i.png", size));
 
   result.url = url;
   result.width = size;
@@ -120,7 +120,8 @@ TEST_F(ExtensionFromWebApp, Basic) {
 
   const int sizes[] = {16, 48, 128};
   for (size_t i = 0; i < arraysize(sizes); ++i) {
-    GURL icon_url(web_app.app_url.Resolve(StringPrintf("%i.png", sizes[i])));
+    GURL icon_url(
+        web_app.app_url.Resolve(base::StringPrintf("%i.png", sizes[i])));
     web_app.icons.push_back(GetIconInfo(icon_url, sizes[i]));
   }
 
@@ -152,7 +153,7 @@ TEST_F(ExtensionFromWebApp, Basic) {
 
   EXPECT_EQ(web_app.icons.size(), IconsInfo::GetIcons(extension).map().size());
   for (size_t i = 0; i < web_app.icons.size(); ++i) {
-    EXPECT_EQ(StringPrintf("icons/%i.png", web_app.icons[i].width),
+    EXPECT_EQ(base::StringPrintf("icons/%i.png", web_app.icons[i].width),
               IconsInfo::GetIcons(extension).Get(
                   web_app.icons[i].width, ExtensionIconSet::MATCH_EXACTLY));
     ExtensionResource resource = IconsInfo::GetIconResource(

chrome/browser/extensions/extension_browsertest.cc

@@ -137,7 +137,7 @@ const Extension* ExtensionBrowserTest::LoadExtensionWithFlags(
     const std::vector<extensions::InstallWarning>& install_warnings =
         extension->install_warnings();
     if (!install_warnings.empty()) {
-      std::string install_warnings_message = StringPrintf(
+      std::string install_warnings_message = base::StringPrintf(
           "Unexpected warnings when loading test extension %s:\n",
           path.AsUTF8Unsafe().c_str());
 

chrome/browser/extensions/webstore_inline_installer.cc

@@ -147,7 +147,8 @@ bool WebstoreInlineInstaller::IsRequestorURLInVerifiedSite(
   // Turn the verified site (which may be a bare domain, or have a port and/or a
   // path) into a URL that can be parsed by URLPattern.
   std::string verified_site_url =
-      StringPrintf("http://*.%s%s",
+      base::StringPrintf(
+          "http://*.%s%s",
           verified_site.c_str(),
           verified_site.find('/') == std::string::npos ? "/*" : "*");
 

chrome/browser/extensions/webstore_installer.cc

@@ -126,8 +126,10 @@ void GetDownloadFilePath(
       directory.AppendASCII(id + "_" + random_number + ".crx");
 
   int uniquifier = file_util::GetUniquePathNumber(file, FILE_PATH_LITERAL(""));
-  if (uniquifier > 0)
-    file = file.InsertBeforeExtensionASCII(StringPrintf(" (%d)", uniquifier));
+  if (uniquifier > 0) {
+    file = file.InsertBeforeExtensionASCII(
+        base::StringPrintf(" (%d)", uniquifier));
+  }
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(callback, file));

chrome/browser/extensions/webstore_startup_installer_browsertest.cc

@@ -82,7 +82,8 @@ class WebstoreStartupInstallerTest : public InProcessBrowserTest {
 
   void RunTest(const std::string& test_function_name) {
     bool result = false;
-    std::string script = StringPrintf("%s('%s')", test_function_name.c_str(),
+    std::string script = base::StringPrintf(
+        "%s('%s')", test_function_name.c_str(),
         test_gallery_url_.c_str());
     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
         browser()->tab_strip_model()->GetActiveWebContents(),
@@ -100,7 +101,7 @@ class WebstoreStartupInstallerTest : public InProcessBrowserTest {
   bool RunIndexedTest(const std::string& test_function_name,
                       int i) {
     std::string result = "FAILED";
-    std::string script = StringPrintf("%s('%s', %d)",
+    std::string script = base::StringPrintf("%s('%s', %d)",
         test_function_name.c_str(), test_gallery_url_.c_str(), i);
     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
         browser()->tab_strip_model()->GetActiveWebContents(),

chrome/browser/extensions/window_open_apitest.cc

@@ -63,8 +63,8 @@ bool WaitForTabsAndPopups(Browser* browser,
                           int num_popups,
                           int num_panels) {
   SCOPED_TRACE(
-      StringPrintf("WaitForTabsAndPopups tabs:%d, popups:%d, panels:%d",
-                   num_tabs, num_popups, num_panels));
+      base::StringPrintf("WaitForTabsAndPopups tabs:%d, popups:%d, panels:%d",
+                         num_tabs, num_popups, num_panels));
   // We start with one tab and one browser already open.
   ++num_tabs;
   size_t num_browsers = static_cast<size_t>(num_popups) + 1;

chrome/browser/history/history_unittest.cc

@@ -130,7 +130,8 @@ class HistoryBackendDBTest : public HistoryUnitTestBase {
     base::FilePath data_path;
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &data_path));
     data_path = data_path.AppendASCII("History");
-    data_path = data_path.AppendASCII(StringPrintf("history.%d.sql", version));
+    data_path =
+          data_path.AppendASCII(base::StringPrintf("history.%d.sql", version));
     ASSERT_NO_FATAL_FAILURE(
         ExecuteSQLScript(data_path, history_dir_.Append(
             chrome::kHistoryFilename)));

chrome/browser/history/redirect_browsertest.cc

@@ -122,7 +122,7 @@ IN_PROC_BROWSER_TEST_F(RedirectTest, ClientEmptyReferer) {
   // test server.
   GURL final_url = test_server()->GetURL(std::string());
   ASSERT_TRUE(final_url.is_valid());
-  std::string file_redirect_contents = StringPrintf(
+  std::string file_redirect_contents = base::StringPrintf(
       "<html>"
       "<head></head>"
       "<body onload=\"document.location='%s'\"></body>"

chrome/browser/importer/firefox_importer_utils.cc

@@ -56,7 +56,7 @@ base::FilePath GetFirefoxProfilePath() {
 
   base::FilePath source_path;
   for (int i = 0; ; ++i) {
-    std::string current_profile = StringPrintf("Profile%d", i);
+    std::string current_profile = base::StringPrintf("Profile%d", i);
     if (!root.HasKey(current_profile)) {
       // Profiles are continuously numbered. So we exit when we can't
       // find the i-th one.

chrome/browser/media_galleries/media_file_system_registry_unittest.cc

@@ -511,7 +511,7 @@ void ProfileState::CheckGalleries(
   registry->GetMediaFileSystemsForExtension(
       rvh, no_permissions_extension_.get(),
       base::Bind(&ProfileState::CompareResults, base::Unretained(this),
-                 StringPrintf("%s (no permission)", test.c_str()),
+                 base::StringPrintf("%s (no permission)", test.c_str()),
                  base::ConstRef(empty_expectation)));
   MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(1, GetAndClearComparisonCount());
@@ -520,7 +520,7 @@ void ProfileState::CheckGalleries(
   registry->GetMediaFileSystemsForExtension(
       rvh, regular_permission_extension_.get(),
       base::Bind(&ProfileState::CompareResults, base::Unretained(this),
-                 StringPrintf("%s (regular permission)", test.c_str()),
+                 base::StringPrintf("%s (regular permission)", test.c_str()),
                  base::ConstRef(regular_extension_galleries)));
   MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(1, GetAndClearComparisonCount());
@@ -529,7 +529,7 @@ void ProfileState::CheckGalleries(
   registry->GetMediaFileSystemsForExtension(
       rvh, all_permission_extension_.get(),
       base::Bind(&ProfileState::CompareResults, base::Unretained(this),
-                 StringPrintf("%s (all permission)", test.c_str()),
+                 base::StringPrintf("%s (all permission)", test.c_str()),
                  base::ConstRef(all_extension_galleries)));
   MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(1, GetAndClearComparisonCount());

chrome/browser/notifications/notification_object_proxy.cc

@@ -46,8 +46,8 @@ void NotificationObjectProxy::Click() {
 }
 
 std::string NotificationObjectProxy::id() const {
-  return StringPrintf("%d:%d:%d:%d", process_id_, route_id_,
-                      notification_id_, worker_);
+  return base::StringPrintf("%d:%d:%d:%d", process_id_, route_id_,
+                            notification_id_, worker_);
 }
 
 RenderViewHost* NotificationObjectProxy::GetRenderViewHost() const {

chrome/browser/password_manager/native_backend_gnome_x.cc

@@ -695,7 +695,7 @@ std::string NativeBackendGnome::GetProfileSpecificAppString() const {
   // Originally, the application string was always just "chrome" and used only
   // so that we had *something* to search for since GNOME Keyring won't search
   // for nothing. Now we use it to distinguish passwords for different profiles.
-  return StringPrintf("%s-%d", kGnomeKeyringAppString, profile_id_);
+  return base::StringPrintf("%s-%d", kGnomeKeyringAppString, profile_id_);
 }
 
 void NativeBackendGnome::MigrateToProfileSpecificLogins() {

chrome/browser/performance_monitor/key_builder.cc

@@ -174,46 +174,46 @@ void KeyBuilder::PopulateKeyMaps() {
 }
 
 std::string KeyBuilder::CreateActiveIntervalKey(const base::Time& time) {
-    return StringPrintf("%016" PRId64, time.ToInternalValue());
+    return base::StringPrintf("%016" PRId64, time.ToInternalValue());
 }
 
 std::string KeyBuilder::CreateMetricKey(const base::Time& time,
                                           const MetricType type,
                                           const std::string& activity) {
-  return StringPrintf("%c%c%016" PRId64 "%c%s",
-                      metric_type_to_metric_key_char_[type],
-                      kDelimiter, time.ToInternalValue(),
-                      kDelimiter, activity.c_str());
+  return base::StringPrintf("%c%c%016" PRId64 "%c%s",
+                            metric_type_to_metric_key_char_[type],
+                            kDelimiter, time.ToInternalValue(),
+                            kDelimiter, activity.c_str());
 }
 
 std::string KeyBuilder::CreateEventKey(const base::Time& time,
                                          const EventType type) {
-  return StringPrintf("%016" PRId64 "%c%c",
-                      time.ToInternalValue(), kDelimiter,
-                      event_type_to_event_key_char_[type]);
+  return base::StringPrintf("%016" PRId64 "%c%c",
+                            time.ToInternalValue(), kDelimiter,
+                            event_type_to_event_key_char_[type]);
 }
 
 std::string KeyBuilder::CreateRecentKey(const base::Time& time,
                                           const MetricType type,
                                           const std::string& activity) {
-  return StringPrintf("%016" PRId64 "%c%c%c%s",
-                      time.ToInternalValue(),
-                      kDelimiter, metric_type_to_metric_key_char_[type],
-                      kDelimiter, activity.c_str());
+  return base::StringPrintf("%016" PRId64 "%c%c%c%s",
+                            time.ToInternalValue(),
+                            kDelimiter, metric_type_to_metric_key_char_[type],
+                            kDelimiter, activity.c_str());
 }
 
 std::string KeyBuilder::CreateRecentMapKey(const MetricType type,
                                              const std::string& activity) {
-  return StringPrintf("%s%c%c",
-                      activity.c_str(),
-                      kDelimiter, metric_type_to_metric_key_char_[type]);
+  return base::StringPrintf("%s%c%c",
+                            activity.c_str(),
+                            kDelimiter, metric_type_to_metric_key_char_[type]);
 }
 
 std::string KeyBuilder::CreateMaxValueKey(const MetricType type,
                                             const std::string& activity) {
-  return StringPrintf("%c%c%s",
-                      metric_type_to_metric_key_char_[type],
-                      kDelimiter, activity.c_str());
+  return base::StringPrintf("%c%c%s",
+                            metric_type_to_metric_key_char_[type],
+                            kDelimiter, activity.c_str());
 }
 
 EventType KeyBuilder::EventKeyToEventType(const std::string& event_key) {

chrome/browser/policy/cloud/user_info_fetcher.cc

@@ -22,7 +22,7 @@ static const char kAuthorizationHeaderFormat[] =
     "Authorization: Bearer %s";
 
 static std::string MakeAuthorizationHeader(const std::string& auth_token) {
-  return StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
+  return base::StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
 }
 
 }  // namespace

chrome/browser/policy/policy_browsertest.cc

@@ -1274,7 +1274,7 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ExtensionInstallForcelist) {
 
   // Setting the forcelist extension should install "good.crx".
   base::ListValue forcelist;
-  forcelist.Append(base::Value::CreateStringValue(StringPrintf(
+  forcelist.Append(base::Value::CreateStringValue(base::StringPrintf(
       "%s;%s", kGoodCrxId, url.spec().c_str())));
   PolicyMap policies;
   policies.Set(key::kExtensionInstallForcelist, POLICY_LEVEL_MANDATORY,

chrome/browser/predictors/autocomplete_action_predictor.cc

@@ -330,8 +330,8 @@ void AutocompleteActionPredictor::OnOmniboxOpenedUrl(
   const AutocompleteMatch& match = log.result.match_at(log.selected_index);
 
   UMA_HISTOGRAM_BOOLEAN(
-      StringPrintf("Prerender.OmniboxNavigationsCouldPrerender%s",
-                   prerender::PrerenderManager::GetModeString()).c_str(),
+      base::StringPrintf("Prerender.OmniboxNavigationsCouldPrerender%s",
+                         prerender::PrerenderManager::GetModeString()).c_str(),
       prerender::IsOmniboxEnabled(profile_));
 
   const GURL& opened_url = match.destination_url;

chrome/browser/prerender/prerender_histograms.cc

@@ -162,8 +162,8 @@ void PrerenderHistograms::RecordPrerender(Origin origin, const GURL& url) {
 void PrerenderHistograms::RecordPrerenderStarted(Origin origin) const {
   if (OriginIsOmnibox(origin)) {
     UMA_HISTOGRAM_ENUMERATION(
-        StringPrintf("Prerender.OmniboxPrerenderCount%s",
-                     PrerenderManager::GetModeString()), 1, 2);
+        base::StringPrintf("Prerender.OmniboxPrerenderCount%s",
+                           PrerenderManager::GetModeString()), 1, 2);
   }
 }
 
@@ -171,16 +171,16 @@ void PrerenderHistograms::RecordConcurrency(size_t prerender_count) const {
   static const size_t kMaxRecordableConcurrency = 20;
   DCHECK_GE(kMaxRecordableConcurrency, Config().max_link_concurrency);
   UMA_HISTOGRAM_ENUMERATION(
-      StringPrintf("Prerender.PrerenderCountOf%" PRIuS "Max",
-                   kMaxRecordableConcurrency),
+      base::StringPrintf("Prerender.PrerenderCountOf%" PRIuS "Max",
+                         kMaxRecordableConcurrency),
       prerender_count, kMaxRecordableConcurrency + 1);
 }
 
 void PrerenderHistograms::RecordUsedPrerender(Origin origin) const {
   if (OriginIsOmnibox(origin)) {
     UMA_HISTOGRAM_ENUMERATION(
-        StringPrintf("Prerender.OmniboxNavigationsUsedPrerenderCount%s",
-                     PrerenderManager::GetModeString()), 1, 2);
+        base::StringPrintf("Prerender.OmniboxNavigationsUsedPrerenderCount%s",
+                           PrerenderManager::GetModeString()), 1, 2);
   }
 }
 

chrome/browser/printing/cloud_print/cloud_print_url.cc

@@ -90,7 +90,7 @@ GURL CloudPrintURL::GetCloudPrintServiceEnableURL(
       "/enable_chrome_connector/enable.html");
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("proxy=%s", proxy_id.c_str());
+  std::string query = base::StringPrintf("proxy=%s", proxy_id.c_str());
   replacements.SetQueryStr(query);
   GURL cloud_print_enable_url = cloud_print_service_url.ReplaceComponents(
       replacements);

chrome/browser/profiles/profile_info_cache.cc

@@ -710,7 +710,7 @@ int ProfileInfoCache::GetDefaultAvatarIconResourceIDAtIndex(size_t index) {
 // static
 std::string ProfileInfoCache::GetDefaultAvatarIconUrl(size_t index) {
   DCHECK(IsDefaultAvatarIconIndex(index));
-  return StringPrintf("%s%" PRIuS, kDefaultUrlPrefix, index);
+  return base::StringPrintf("%s%" PRIuS, kDefaultUrlPrefix, index);
 }
 
 // static

chrome/browser/profiles/profile_info_cache_unittest.cc

@@ -119,8 +119,9 @@ TEST_F(ProfileInfoCacheTest, AddProfiles) {
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   for (uint32 i = 0; i < 4; ++i) {
-    base::FilePath profile_path = GetProfilePath(StringPrintf("path_%ud", i));
-    string16 profile_name = ASCIIToUTF16(StringPrintf("name_%ud", i));
+    base::FilePath profile_path =
+        GetProfilePath(base::StringPrintf("path_%ud", i));
+    string16 profile_name = ASCIIToUTF16(base::StringPrintf("name_%ud", i));
     const SkBitmap* icon = rb.GetImageNamed(
         ProfileInfoCache::GetDefaultAvatarIconResourceIDAtIndex(
             i)).ToSkBitmap();
@@ -128,7 +129,7 @@ TEST_F(ProfileInfoCacheTest, AddProfiles) {
     GetCache()->AddProfileToCache(profile_path, profile_name, string16(), i,
                                   false);
     GetCache()->SetBackgroundStatusOfProfileAtIndex(i, true);
-    string16 gaia_name = ASCIIToUTF16(StringPrintf("gaia_%ud", i));
+    string16 gaia_name = ASCIIToUTF16(base::StringPrintf("gaia_%ud", i));
     GetCache()->SetGAIANameOfProfileAtIndex(i, gaia_name);
 
     EXPECT_EQ(i + 1, GetCache()->GetNumberOfProfiles());
@@ -145,13 +146,14 @@ TEST_F(ProfileInfoCacheTest, AddProfiles) {
 
   EXPECT_EQ(4u, GetCache()->GetNumberOfProfiles());
   for (uint32 i = 0; i < 4; ++i) {
-    base::FilePath profile_path = GetProfilePath(StringPrintf("path_%ud", i));
+    base::FilePath profile_path =
+          GetProfilePath(base::StringPrintf("path_%ud", i));
     EXPECT_EQ(i, GetCache()->GetIndexOfProfileWithPath(profile_path));
-    string16 profile_name = ASCIIToUTF16(StringPrintf("name_%ud", i));
+    string16 profile_name = ASCIIToUTF16(base::StringPrintf("name_%ud", i));
     EXPECT_EQ(profile_name, GetCache()->GetNameOfProfileAtIndex(i));
     EXPECT_EQ(i, GetCache()->GetAvatarIconIndexOfProfileAtIndex(i));
     EXPECT_EQ(true, GetCache()->GetBackgroundStatusOfProfileAtIndex(i));
-    string16 gaia_name = ASCIIToUTF16(StringPrintf("gaia_%ud", i));
+    string16 gaia_name = ASCIIToUTF16(base::StringPrintf("gaia_%ud", i));
     EXPECT_EQ(gaia_name, GetCache()->GetGAIANameOfProfileAtIndex(i));
   }
 }

chrome/browser/profiles/profile_io_data.cc

@@ -606,7 +606,7 @@ std::string ProfileIOData::GetSSLSessionCacheShard() {
   // new profile, we'll get a fresh SSL session cache which is separate from
   // the other profiles.
   static unsigned ssl_session_cache_instance = 0;
-  return StringPrintf("profile/%u", ssl_session_cache_instance++);
+  return base::StringPrintf("profile/%u", ssl_session_cache_instance++);
 }
 
 void ProfileIOData::Init(content::ProtocolHandlerMap* protocol_handlers) const {

chrome/browser/safe_browsing/browser_feature_extractor.cc

@@ -59,10 +59,10 @@ static void AddNavigationFeatures(
   NavigationEntry* entry = controller.GetEntryAtIndex(index);
   bool is_secure_referrer = entry->GetReferrer().url.SchemeIsSecure();
   if (!is_secure_referrer) {
-    AddFeature(StringPrintf("%s%s=%s",
-                            feature_prefix.c_str(),
-                            features::kReferrer,
-                            entry->GetReferrer().url.spec().c_str()),
+    AddFeature(base::StringPrintf("%s%s=%s",
+                                  feature_prefix.c_str(),
+                                  features::kReferrer,
+                                  entry->GetReferrer().url.spec().c_str()),
                1.0,
                request);
   }
@@ -102,11 +102,11 @@ static void AddNavigationFeatures(
     if (redirect_chain[i].SchemeIsSecure()) {
       printable_redirect = features::kSecureRedirectValue;
     }
-    AddFeature(StringPrintf("%s%s[%"PRIuS"]=%s",
-                            feature_prefix.c_str(),
-                            features::kRedirect,
-                            i,
-                            printable_redirect.c_str()),
+    AddFeature(base::StringPrintf("%s%s[%"PRIuS"]=%s",
+                                  feature_prefix.c_str(),
+                                  features::kRedirect,
+                                  i,
+                                  printable_redirect.c_str()),
                1.0,
                request);
   }

chrome/browser/safe_browsing/browser_feature_extractor_unittest.cc

@@ -302,19 +302,19 @@ TEST_F(BrowserFeatureExtractorTest, BrowseFeatures) {
   GetFeatureMap(request, &features);
 
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s=%s",
-                                  features::kReferrer,
-                                  "http://google.com/")]);
+            features[base::StringPrintf("%s=%s",
+                                        features::kReferrer,
+                                        "http://google.com/")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s[0]=%s",
-                                  features::kRedirect,
-                                  "http://somerandomwebsite.com/")]);
+            features[base::StringPrintf("%s[0]=%s",
+                                        features::kRedirect,
+                                        "http://somerandomwebsite.com/")]);
   // We shouldn't have a feature for the last redirect in the chain, since it
   // should always be the URL that we navigated to.
   EXPECT_EQ(0.0,
-            features[StringPrintf("%s[1]=%s",
-                                  features::kRedirect,
-                                  "http://foo.com/")]);
+            features[base::StringPrintf("%s[1]=%s",
+                                        features::kRedirect,
+                                        "http://foo.com/")]);
   EXPECT_EQ(0.0, features[features::kHasSSLReferrer]);
   EXPECT_EQ(2.0, features[features::kPageTransitionType]);
   EXPECT_EQ(1.0, features[features::kIsFirstNavigation]);
@@ -341,38 +341,38 @@ TEST_F(BrowserFeatureExtractorTest, BrowseFeatures) {
   GetFeatureMap(request, &features);
 
   EXPECT_EQ(1,
-            features[StringPrintf("%s=%s",
-                                  features::kReferrer,
-                                  "http://www.foo.com/")]);
+            features[base::StringPrintf("%s=%s",
+                                        features::kReferrer,
+                                        "http://www.foo.com/")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s[0]=%s",
-                                  features::kRedirect,
-                                  "http://www.foo.com/redirect")]);
+            features[base::StringPrintf("%s[0]=%s",
+                                        features::kRedirect,
+                                        "http://www.foo.com/redirect")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s[1]=%s",
-                                  features::kRedirect,
-                                  "http://www.foo.com/second_redirect")]);
+            features[base::StringPrintf("%s[1]=%s",
+                                        features::kRedirect,
+                                        "http://www.foo.com/second_redirect")]);
   EXPECT_EQ(0.0, features[features::kHasSSLReferrer]);
   EXPECT_EQ(1.0, features[features::kPageTransitionType]);
   EXPECT_EQ(0.0, features[features::kIsFirstNavigation]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s%s=%s",
-                                  features::kHostPrefix,
-                                  features::kReferrer,
-                                  "http://google.com/")]);
+            features[base::StringPrintf("%s%s=%s",
+                                        features::kHostPrefix,
+                                        features::kReferrer,
+                                        "http://google.com/")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s%s[0]=%s",
-                                  features::kHostPrefix,
-                                  features::kRedirect,
-                                  "http://somerandomwebsite.com/")]);
+            features[base::StringPrintf("%s%s[0]=%s",
+                                        features::kHostPrefix,
+                                        features::kRedirect,
+                                        "http://somerandomwebsite.com/")]);
   EXPECT_EQ(2.0,
-            features[StringPrintf("%s%s",
-                                  features::kHostPrefix,
-                                  features::kPageTransitionType)]);
+            features[base::StringPrintf("%s%s",
+                                        features::kHostPrefix,
+                                        features::kPageTransitionType)]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s%s",
-                                  features::kHostPrefix,
-                                  features::kIsFirstNavigation)]);
+            features[base::StringPrintf("%s%s",
+                                        features::kHostPrefix,
+                                        features::kIsFirstNavigation)]);
   EXPECT_EQ(404.0, features[features::kHttpStatusCode]);
 
   request.Clear();
@@ -394,26 +394,26 @@ TEST_F(BrowserFeatureExtractorTest, BrowseFeatures) {
   GetFeatureMap(request, &features);
 
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s=%s",
-                                  features::kReferrer,
-                                  "http://www.foo.com/page.html")]);
+            features[base::StringPrintf("%s=%s",
+                                        features::kReferrer,
+                                        "http://www.foo.com/page.html")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s[0]=%s",
-                                  features::kRedirect,
-                                  "http://www.foo.com/page.html")]);
+            features[base::StringPrintf("%s[0]=%s",
+                                        features::kRedirect,
+                                        "http://www.foo.com/page.html")]);
   EXPECT_EQ(0.0, features[features::kHasSSLReferrer]);
   EXPECT_EQ(0.0, features[features::kPageTransitionType]);
   EXPECT_EQ(0.0, features[features::kIsFirstNavigation]);
 
   // Should not have host features.
   EXPECT_EQ(0U,
-            features.count(StringPrintf("%s%s",
-                                        features::kHostPrefix,
-                                        features::kPageTransitionType)));
+            features.count(base::StringPrintf("%s%s",
+                                              features::kHostPrefix,
+                                              features::kPageTransitionType)));
   EXPECT_EQ(0U,
-            features.count(StringPrintf("%s%s",
-                                        features::kHostPrefix,
-                                        features::kIsFirstNavigation)));
+            features.count(base::StringPrintf("%s%s",
+                                              features::kHostPrefix,
+                                              features::kIsFirstNavigation)));
 
   request.Clear();
   request.set_url("http://www.bar.com/other_page.html");
@@ -430,30 +430,30 @@ TEST_F(BrowserFeatureExtractorTest, BrowseFeatures) {
   GetFeatureMap(request, &features);
 
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s=%s",
-                                  features::kReferrer,
-                                  "http://www.bar.com/")]);
+            features[base::StringPrintf("%s=%s",
+                                        features::kReferrer,
+                                        "http://www.bar.com/")]);
   EXPECT_EQ(0.0, features[features::kHasSSLReferrer]);
   EXPECT_EQ(0.0, features[features::kPageTransitionType]);
   EXPECT_EQ(0.0, features[features::kIsFirstNavigation]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s%s=%s",
-                                  features::kHostPrefix,
-                                  features::kReferrer,
-                                  "http://www.foo.com/page.html")]);
+            features[base::StringPrintf("%s%s=%s",
+                                        features::kHostPrefix,
+                                        features::kReferrer,
+                                        "http://www.foo.com/page.html")]);
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s%s[0]=%s",
-                                  features::kHostPrefix,
-                                  features::kRedirect,
-                                  "http://www.foo.com/page.html")]);
+            features[base::StringPrintf("%s%s[0]=%s",
+                                        features::kHostPrefix,
+                                        features::kRedirect,
+                                        "http://www.foo.com/page.html")]);
   EXPECT_EQ(0.0,
-            features[StringPrintf("%s%s",
-                                  features::kHostPrefix,
-                                  features::kPageTransitionType)]);
+            features[base::StringPrintf("%s%s",
+                                        features::kHostPrefix,
+                                        features::kPageTransitionType)]);
   EXPECT_EQ(0.0,
-            features[StringPrintf("%s%s",
-                                  features::kHostPrefix,
-                                  features::kIsFirstNavigation)]);
+            features[base::StringPrintf("%s%s",
+                                        features::kHostPrefix,
+                                        features::kIsFirstNavigation)]);
   request.Clear();
   request.set_url("http://www.baz.com/");
   request.set_client_score(0.5);
@@ -475,20 +475,20 @@ TEST_F(BrowserFeatureExtractorTest, BrowseFeatures) {
   GetFeatureMap(request, &features);
 
   EXPECT_EQ(1.0,
-            features[StringPrintf("%s[0]=%s",
-                                  features::kRedirect,
-                                  features::kSecureRedirectValue)]);
+            features[base::StringPrintf("%s[0]=%s",
+                                        features::kRedirect,
+                                        features::kSecureRedirectValue)]);
   EXPECT_EQ(1.0, features[features::kHasSSLReferrer]);
   EXPECT_EQ(5.0, features[features::kPageTransitionType]);
   // Should not have redirect or host features.
   EXPECT_EQ(0U,
-            features.count(StringPrintf("%s%s",
-                                        features::kHostPrefix,
-                                        features::kPageTransitionType)));
+            features.count(base::StringPrintf("%s%s",
+                                              features::kHostPrefix,
+                                              features::kPageTransitionType)));
   EXPECT_EQ(0U,
-            features.count(StringPrintf("%s%s",
-                                        features::kHostPrefix,
-                                        features::kIsFirstNavigation)));
+            features.count(base::StringPrintf("%s%s",
+                                              features::kHostPrefix,
+                                              features::kIsFirstNavigation)));
   EXPECT_EQ(5.0, features[features::kPageTransitionType]);
   EXPECT_EQ(1.0, features[std::string(features::kBadIpFetch) + "193.5.163.8"]);
   EXPECT_FALSE(features.count(std::string(features::kBadIpFetch) +
@@ -511,12 +511,14 @@ TEST_F(BrowserFeatureExtractorTest, SafeBrowsingFeatures) {
   ExtractFeatures(&request);
   std::map<std::string, double> features;
   GetFeatureMap(request, &features);
-  EXPECT_TRUE(features.count(StringPrintf("%s%s",
-                                          features::kSafeBrowsingMaliciousUrl,
-                                          "http://www.malware.com/")));
-  EXPECT_TRUE(features.count(StringPrintf("%s%s",
-                                          features::kSafeBrowsingOriginalUrl,
-                                          "http://www.good.com/")));
+  EXPECT_TRUE(features.count(base::StringPrintf(
+      "%s%s",
+      features::kSafeBrowsingMaliciousUrl,
+      "http://www.malware.com/")));
+  EXPECT_TRUE(features.count(base::StringPrintf(
+      "%s%s",
+       features::kSafeBrowsingOriginalUrl,
+        "http://www.good.com/")));
   EXPECT_DOUBLE_EQ(1.0, features[features::kSafeBrowsingIsSubresource]);
   EXPECT_DOUBLE_EQ(2.0, features[features::kSafeBrowsingThreatType]);
 }

chrome/browser/sessions/persistent_tab_restore_service_browsertest.cc

@@ -592,8 +592,8 @@ TEST_F(PersistentTabRestoreServiceTest, PruneEntries) {
   for (size_t i = 0; i < max_entries + 5; i++) {
     TabNavigation navigation =
         SessionTypesTestHelper::CreateNavigation(
-            StringPrintf("http://%d", static_cast<int>(i)),
-            StringPrintf("%d", static_cast<int>(i)));
+            base::StringPrintf("http://%d", static_cast<int>(i)),
+            base::StringPrintf("%d", static_cast<int>(i)));
 
     Tab* tab = new Tab();
     tab->navigations.push_back(navigation);
@@ -683,7 +683,8 @@ TEST_F(PersistentTabRestoreServiceTest, PruneIsCalled) {
 
   const size_t max_entries = kMaxEntries;
   for (size_t i = 0; i < max_entries + 5; i++) {
-    NavigateAndCommit(GURL(StringPrintf("http://%d", static_cast<int>(i))));
+    NavigateAndCommit(
+        GURL(base::StringPrintf("http://%d", static_cast<int>(i))));
     service_->CreateHistoricalTab(web_contents(), -1);
   }
 

chrome/browser/ssl/ssl_browser_tests.cc

@@ -576,11 +576,11 @@ IN_PROC_BROWSER_TEST_F(SSLUITest, MAYBE_TestWSSInvalidCertAndClose) {
   watcher.AlsoWaitForTitle(ASCIIToUTF16("FAIL"));
 
   // Create GURLs to test pages.
-  std::string masterUrlPath = StringPrintf("%s?%d",
+  std::string masterUrlPath = base::StringPrintf("%s?%d",
       test_server()->GetURL("files/ssl/wss_close.html").spec().c_str(),
       wss_server_expired_.host_port_pair().port());
   GURL masterUrl(masterUrlPath);
-  std::string slaveUrlPath = StringPrintf("%s?%d",
+  std::string slaveUrlPath = base::StringPrintf("%s?%d",
       test_server()->GetURL("files/ssl/wss_close_slave.html").spec().c_str(),
       wss_server_expired_.host_port_pair().port());
   GURL slaveUrl(slaveUrlPath);

chrome/browser/sync/test/integration/bookmarks_helper.cc

@@ -736,23 +736,23 @@ gfx::Image Create1xFaviconFromPNGFile(const std::string& path) {
 }
 
 std::string IndexedURL(int i) {
-  return StringPrintf("http://www.host.ext:1234/path/filename/%d", i);
+  return base::StringPrintf("http://www.host.ext:1234/path/filename/%d", i);
 }
 
 std::wstring IndexedURLTitle(int i) {
-  return StringPrintf(L"URL Title %d", i);
+  return base::StringPrintf(L"URL Title %d", i);
 }
 
 std::wstring IndexedFolderName(int i) {
-  return StringPrintf(L"Folder Name %d", i);
+  return base::StringPrintf(L"Folder Name %d", i);
 }
 
 std::wstring IndexedSubfolderName(int i) {
-  return StringPrintf(L"Subfolder Name %d", i);
+  return base::StringPrintf(L"Subfolder Name %d", i);
 }
 
 std::wstring IndexedSubsubfolderName(int i) {
-  return StringPrintf(L"Subsubfolder Name %d", i);
+  return base::StringPrintf(L"Subsubfolder Name %d", i);
 }
 
 }  // namespace bookmarks_helper

chrome/browser/sync/test/integration/multiple_client_bookmarks_sync_test.cc

@@ -24,7 +24,7 @@ IN_PROC_BROWSER_TEST_F(MultipleClientBookmarksSyncTest, Sanity) {
   DisableVerifier();
   for (int i = 0; i < num_clients(); ++i) {
     ASSERT_TRUE(AddURL(i, base::StringPrintf(L"Google URL %d", i),
-        GURL(StringPrintf("http://www.google.com/%d", i))) != NULL);
+        GURL(base::StringPrintf("http://www.google.com/%d", i))) != NULL);
   }
   ASSERT_TRUE(AwaitQuiescence());
   ASSERT_TRUE(AllModelsMatch());

chrome/browser/sync/test/integration/multiple_client_sessions_sync_test.cc

@@ -46,7 +46,7 @@ IN_PROC_BROWSER_TEST_F(MultipleClientSessionsSyncTest, MAYBE_AllChanged) {
   for (int i = 0; i < num_clients(); ++i) {
     SessionWindowMap windows;
     ASSERT_TRUE(OpenTabAndGetLocalWindows(
-        i, GURL(StringPrintf("http://127.0.0.1/bubba%i", i)), &windows));
+        i, GURL(base::StringPrintf("http://127.0.0.1/bubba%i", i)), &windows));
     client_windows[i].Reset(&windows);
   }
 
@@ -82,7 +82,7 @@ IN_PROC_BROWSER_TEST_F(MultipleClientSessionsSyncTest,
   for (int i = 0; i < num_clients(); ++i) {
     SessionWindowMap windows;
     ASSERT_TRUE(OpenTabAndGetLocalWindows(
-        i, GURL(StringPrintf("http://127.0.0.1/bubba%i", i)), &windows));
+        i, GURL(base::StringPrintf("http://127.0.0.1/bubba%i", i)), &windows));
     client_windows[i].Reset(&windows);
   }
 

chrome/browser/sync/test/integration/performance/autofill_sync_perf_test.cc

@@ -135,7 +135,7 @@ const std::string AutofillSyncPerfTest::NextGUID() {
 }
 
 const std::string AutofillSyncPerfTest::IntToGUID(int n) {
-  return StringPrintf("00000000-0000-0000-0000-%012X", n);
+  return base::StringPrintf("00000000-0000-0000-0000-%012X", n);
 }
 
 const std::string AutofillSyncPerfTest::NextName() {
@@ -143,7 +143,7 @@ const std::string AutofillSyncPerfTest::NextName() {
 }
 
 const std::string AutofillSyncPerfTest::IntToName(int n) {
-  return StringPrintf("Name%d", n);
+  return base::StringPrintf("Name%d", n);
 }
 
 const std::string AutofillSyncPerfTest::NextValue() {
@@ -151,7 +151,7 @@ const std::string AutofillSyncPerfTest::NextValue() {
 }
 
 const std::string AutofillSyncPerfTest::IntToValue(int n) {
-  return StringPrintf("Value%d", n);
+  return base::StringPrintf("Value%d", n);
 }
 
 void ForceSync(int profile) {

chrome/browser/sync/test/integration/performance/sessions_sync_perf_test.cc

@@ -112,7 +112,7 @@ GURL SessionsSyncPerfTest::NextURL() {
 }
 
 GURL SessionsSyncPerfTest::IntToURL(int n) {
-  return GURL(StringPrintf("http://localhost/%d", n));
+  return GURL(base::StringPrintf("http://localhost/%d", n));
 }
 
 // TODO(lipalani): Re-enable after crbug.com/96921 is fixed.

chrome/browser/sync/test/integration/performance/typed_urls_sync_perf_test.cc

@@ -91,7 +91,7 @@ GURL TypedUrlsSyncPerfTest::NextURL() {
 }
 
 GURL TypedUrlsSyncPerfTest::IntToURL(int n) {
-  return GURL(StringPrintf("http://history%d.google.com/", n));
+  return GURL(base::StringPrintf("http://history%d.google.com/", n));
 }
 
 IN_PROC_BROWSER_TEST_F(TypedUrlsSyncPerfTest, P0) {

chrome/browser/sync/test/integration/two_client_extension_settings_and_app_settings_sync_test.cc

@@ -31,27 +31,27 @@ void MutateSomeSettings(
   {
     // Write to extension0 from profile 0 but not profile 1.
     DictionaryValue settings;
-    settings.SetString("asdf", StringPrintf("asdfasdf-%d", seed));
+    settings.SetString("asdf", base::StringPrintf("asdfasdf-%d", seed));
     SetExtensionSettings(test()->verifier(),    extension0, settings);
     SetExtensionSettings(test()->GetProfile(0), extension0, settings);
   }
   {
     // Write the same data to extension1 from both profiles.
     DictionaryValue settings;
-    settings.SetString("asdf", StringPrintf("asdfasdf-%d", seed));
-    settings.SetString("qwer", StringPrintf("qwerqwer-%d", seed));
+    settings.SetString("asdf", base::StringPrintf("asdfasdf-%d", seed));
+    settings.SetString("qwer", base::StringPrintf("qwerqwer-%d", seed));
     SetExtensionSettingsForAllProfiles(extension1, settings);
   }
   {
     // Write different data to extension2 from each profile.
     DictionaryValue settings0;
-    settings0.SetString("zxcv", StringPrintf("zxcvzxcv-%d", seed));
+    settings0.SetString("zxcv", base::StringPrintf("zxcvzxcv-%d", seed));
     SetExtensionSettings(test()->verifier(),    extension2, settings0);
     SetExtensionSettings(test()->GetProfile(0), extension2, settings0);
 
     DictionaryValue settings1;
-    settings1.SetString("1324", StringPrintf("12341234-%d", seed));
-    settings1.SetString("5687", StringPrintf("56785678-%d", seed));
+    settings1.SetString("1324", base::StringPrintf("12341234-%d", seed));
+    settings1.SetString("5687", base::StringPrintf("56785678-%d", seed));
     SetExtensionSettings(test()->verifier(),    extension2, settings1);
     SetExtensionSettings(test()->GetProfile(1), extension2, settings1);
   }

chrome/browser/sync_file_system/drive_file_sync_service_sync_unittest.cc

@@ -188,13 +188,15 @@ class DriveFileSyncServiceSyncTest : public testing::Test {
     typedef ResourceIdByTitle::iterator iterator;
     std::pair<iterator, bool> inserted =
         resources_.insert(std::make_pair(title, std::string()));
-    if (inserted.second)
-      inserted.first->second = StringPrintf("%" PRId64, ++resource_count_);
+    if (inserted.second) {
+      inserted.first->second =
+          base::StringPrintf("%" PRId64, ++resource_count_);
+    }
     std::string resource_id = inserted.first->second;
 
     fake_sync_client_->PushRemoteChange(
         kParentResourceId, kAppId, title, resource_id,
-        StringPrintf("%" PRIx64, base::RandUint64()),
+        base::StringPrintf("%" PRIx64, base::RandUint64()),
         false /* deleted */);
     message_loop_.RunUntilIdle();
   }

chrome/browser/themes/theme_syncable_service.cc

@@ -76,8 +76,8 @@ syncer::SyncMergeResult ThemeSyncableService::MergeDataAndStartSyncing(
   if (initial_sync_data.size() > 1) {
     sync_error_handler_->CreateAndUploadError(
         FROM_HERE,
-        StringPrintf("Received %d theme specifics.",
-                     static_cast<int>(initial_sync_data.size())));
+        base::StringPrintf("Received %d theme specifics.",
+                           static_cast<int>(initial_sync_data.size())));
   }
 
   sync_pb::ThemeSpecifics current_specifics;

chrome/browser/ui/ash/event_rewriter_unittest.cc

@@ -52,7 +52,7 @@ std::string GetRewrittenEventAsString(EventRewriter* rewriter,
   InitXKeyEvent(ui_keycode, ui_flags, ui_type, x_keycode, x_state, &xev);
   ui::KeyEvent keyevent(&xev, false /* is_char */);
   rewriter->RewriteForTesting(&keyevent);
-  return StringPrintf(
+  return base::StringPrintf(
       "ui_keycode=%d ui_flags=%d ui_type=%d x_keycode=%u x_state=%u x_type=%d",
       keyevent.key_code(), keyevent.flags(), keyevent.type(),
       xev.xkey.keycode, xev.xkey.state, xev.xkey.type);
@@ -64,7 +64,7 @@ std::string GetExpectedResultAsString(ui::KeyboardCode ui_keycode,
                                       KeyCode x_keycode,
                                       unsigned int x_state,
                                       int x_type) {
-  return StringPrintf(
+  return base::StringPrintf(
       "ui_keycode=%d ui_flags=%d ui_type=%d x_keycode=%u x_state=%u x_type=%d",
       ui_keycode, ui_flags, ui_type, x_keycode, x_state, x_type);
 }
@@ -2354,7 +2354,7 @@ TEST_F(EventRewriterTest, TestRewriteKeyEventSentByXSendEvent) {
     xev.xkey.send_event = True;  // XSendEvent() always does this.
     ui::KeyEvent keyevent(&xev, false /* is_char */);
     rewriter.RewriteForTesting(&keyevent);
-    rewritten_event = StringPrintf(
+    rewritten_event = base::StringPrintf(
         "ui_keycode=%d ui_flags=%d ui_type=%d "
         "x_keycode=%u x_state=%u x_type=%d",
         keyevent.key_code(), keyevent.flags(), keyevent.type(),

chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc

@@ -810,7 +810,7 @@ IN_PROC_BROWSER_TEST_F(LauncherAppBrowserTest, OverflowBubble) {
 
   int items_added = 0;
   while (!test.IsOverflowButtonVisible()) {
-    std::string fake_app_id = StringPrintf("fake_app_%d", items_added);
+    std::string fake_app_id = base::StringPrintf("fake_app_%d", items_added);
     PinFakeApp(fake_app_id);
 
     ++items_added;

chrome/browser/ui/ash/launcher/shell_window_launcher_controller.cc

@@ -17,7 +17,7 @@ namespace {
 
 std::string GetAppLauncherId(ShellWindow* shell_window) {
   if (shell_window->window_type_is_panel())
-    return StringPrintf("panel:%d", shell_window->session_id().id());
+    return base::StringPrintf("panel:%d", shell_window->session_id().id());
   return shell_window->extension()->id();
 }
 

chrome/browser/ui/autofill/autofill_dialog_models.cc

@@ -190,7 +190,7 @@ int MonthComboboxModel::GetItemCount() const {
 
 // static
 string16 MonthComboboxModel::FormatMonth(int index) {
-  return ASCIIToUTF16(StringPrintf("%2d", index));
+  return ASCIIToUTF16(base::StringPrintf("%2d", index));
 }
 
 string16 MonthComboboxModel::GetItemAt(int index) {

chrome/browser/ui/chrome_pages.cc

@@ -42,8 +42,8 @@ void OpenBookmarkManagerWithHash(Browser* browser,
   NavigateParams params(GetSingletonTabNavigateParams(
       browser,
       GURL(kChromeUIBookmarksURL).Resolve(
-      StringPrintf("/#%s%s", action.c_str(),
-      base::Int64ToString(node_id).c_str()))));
+          base::StringPrintf("/#%s%s", action.c_str(),
+              base::Int64ToString(node_id).c_str()))));
   params.path_behavior = NavigateParams::IGNORE_AND_NAVIGATE;
   ShowSingletonTabOverwritingNTP(browser, params);
 }

chrome/browser/ui/views/about_ipc_dialog.cc

@@ -296,7 +296,7 @@ void AboutIPCDialog::Log(const IPC::LogData& data) {
   if (exploded.hour > 12)
     exploded.hour -= 12;
 
-  std::wstring sent_str = StringPrintf(L"%02d:%02d:%02d.%03d",
+  std::wstring sent_str = base::StringPrintf(L"%02d:%02d:%02d.%03d",
       exploded.hour, exploded.minute, exploded.second, exploded.millisecond);
 
   int count = message_list_.GetItemCount();
@@ -317,13 +317,13 @@ void AboutIPCDialog::Log(const IPC::LogData& data) {
       sent).InMilliseconds();
   // time can go backwards by a few ms (see Time), don't show that.
   time_to_send = std::max(static_cast<int>(time_to_send), 0);
-  std::wstring temp = StringPrintf(L"%d", time_to_send);
+  std::wstring temp = base::StringPrintf(L"%d", time_to_send);
   message_list_.SetItemText(index, kDispatchColumn, temp.c_str());
 
   int64 time_to_process = (base::Time::FromInternalValue(data.dispatch) -
       base::Time::FromInternalValue(data.receive)).InMilliseconds();
   time_to_process = std::max(static_cast<int>(time_to_process), 0);
-  temp = StringPrintf(L"%d", time_to_process);
+  temp = base::StringPrintf(L"%d", time_to_process);
   message_list_.SetItemText(index, kProcessColumn, temp.c_str());
 
   message_list_.SetItemText(index, kParamsColumn,

chrome/browser/ui/views/message_center/web_notification_tray_win_browsertest.cc

@@ -176,7 +176,7 @@ IN_PROC_BROWSER_TEST_F(WebNotificationTrayWinTest,
   size_t notifications_to_add =
       NotificationList::kMaxVisibleMessageCenterNotifications + 1;
   for (size_t i = 0; i < notifications_to_add; ++i) {
-    std::string id = StringPrintf("test_id%d", static_cast<int>(i));
+    std::string id = base::StringPrintf("test_id%d", static_cast<int>(i));
     delegate->AddNotification(id);
   }
   bool shown = tray->message_center_tray_->ShowMessageCenterBubble();
@@ -200,7 +200,7 @@ IN_PROC_BROWSER_TEST_F(WebNotificationTrayWinTest, ManyPopupNotifications) {
   size_t notifications_to_add =
       NotificationList::kMaxVisiblePopupNotifications + 1;
   for (size_t i = 0; i < notifications_to_add; ++i) {
-    std::string id = StringPrintf("test_id%d", static_cast<int>(i));
+    std::string id = base::StringPrintf("test_id%d", static_cast<int>(i));
     delegate->AddNotification(id);
   }
   // Hide and reshow the bubble so that it is updated immediately, not delayed.

chrome/browser/ui/webui/about_ui.cc

@@ -108,8 +108,8 @@ const char kStringsJsPath[] = "strings.js";
 // redirect solves the problem by eliminating the process transition during the
 // time that about memory is being computed.
 std::string GetAboutMemoryRedirectResponse(Profile* profile) {
-  return StringPrintf("<meta http-equiv=\"refresh\" content=\"0;%s\">",
-                      chrome::kChromeUIMemoryRedirectURL);
+  return base::StringPrintf("<meta http-equiv=\"refresh\" content=\"0;%s\">",
+                            chrome::kChromeUIMemoryRedirectURL);
 }
 
 // Handling about:memory is complicated enough to encapsulate its related
@@ -183,10 +183,10 @@ class ChromeOSTermsHandler
       }
     } else {
       std::string file_path =
-          StringPrintf(chrome::kEULAPathFormat, locale_.c_str());
+          base::StringPrintf(chrome::kEULAPathFormat, locale_.c_str());
       if (!file_util::ReadFileToString(base::FilePath(file_path), &contents_)) {
         // No EULA for given language - try en-US as default.
-        file_path = StringPrintf(chrome::kEULAPathFormat, "en-US");
+        file_path = base::StringPrintf(chrome::kEULAPathFormat, "en-US");
         if (!file_util::ReadFileToString(base::FilePath(file_path),
                                          &contents_)) {
           // File with EULA not found, ResponseOnUIThread will load EULA from
@@ -315,8 +315,9 @@ std::string AddStringRow(const std::string& name, const std::string& value) {
 std::string AboutDiscardsRun() {
   std::string output;
   AppendHeader(&output, 0, "About discards");
-  output.append(StringPrintf("<meta http-equiv=\"refresh\" content=\"2;%s\">",
-                             chrome::kChromeUIDiscardsURL));
+  output.append(
+      base::StringPrintf("<meta http-equiv=\"refresh\" content=\"2;%s\">",
+      chrome::kChromeUIDiscardsURL));
   output.append(WrapWithTag("p", "Discarding a tab..."));
   g_browser_process->oom_priority_manager()->LogMemoryAndDiscardTab();
   AppendFooter(&output);
@@ -348,11 +349,11 @@ std::string AboutDiscards(const std::string& path) {
   } else {
     output.append("<p>None found.  Wait 10 seconds, then refresh.</p>");
   }
-  output.append(StringPrintf("%d discards this session. ",
+  output.append(base::StringPrintf("%d discards this session. ",
                              oom->discard_count()));
-  output.append(StringPrintf("<a href='%s%s'>Discard tab now</a>",
-                             chrome::kChromeUIDiscardsURL,
-                             kRunCommand));
+  output.append(base::StringPrintf("<a href='%s%s'>Discard tab now</a>",
+                                   chrome::kChromeUIDiscardsURL,
+                                   kRunCommand));
 
   base::SystemMemoryInfoKB meminfo;
   base::GetSystemMemoryInfo(&meminfo);
@@ -404,7 +405,7 @@ std::string AboutDiscards(const std::string& path) {
 std::string TransparencyLink(const std::string& label,
                              int value,
                              const std::string& key) {
-  return StringPrintf("<p>%s</p>"
+  return base::StringPrintf("<p>%s</p>"
       "<p>"
       "<a href='%s%s=%d'>--</a> "
       "<a href='%s%s=%d'>-</a> "
@@ -473,7 +474,7 @@ std::string AboutTransparency(const std::string& path) {
   output.append(TransparencyLink("Solo window:",
       TransparencyFromOpacity(ash::FramePainter::kSoloWindowOpacity),
       kSolo));
-  output.append(StringPrintf(
+  output.append(base::StringPrintf(
       "<p>Share: %s%s=%d&%s=%d&%s=%d</p>",
       chrome::kChromeUITransparencyURL,
       kActive,
@@ -688,7 +689,7 @@ std::string AboutStats(const std::string& query) {
   } else if (query == "raw") {
     // Dump the raw counters which have changed in text format.
     data = "<pre>";
-    data.append(StringPrintf("Counter changes in the last %ldms\n",
+    data.append(base::StringPrintf("Counter changes in the last %ldms\n",
         static_cast<long int>(time_since_last_sample.InMilliseconds())));
     for (size_t i = 0; i < counters->GetSize(); ++i) {
       Value* entry = NULL;

chrome/browser/ui/webui/omnibox/omnibox_ui_handler.cc

@@ -97,7 +97,7 @@ void OmniboxUIHandler::AddResultToDictionary(const std::string& prefix,
                                              base::DictionaryValue* output) {
   int i = 0;
   for (; it != end; ++it, ++i) {
-    std::string item_prefix(prefix + StringPrintf(".item_%d", i));
+    std::string item_prefix(prefix + base::StringPrintf(".item_%d", i));
     if (it->provider != NULL) {
       output->SetString(item_prefix + ".provider_name",
                         it->provider->GetName());

chrome/browser/ui/webui/welcome_ui_android.cc

@@ -34,7 +34,7 @@ WelcomeUI::WelcomeUI(content::WebUI* web_ui)
   html_source->AddLocalizedString("settings", IDS_FIRSTRUN_SETTINGS_LINK);
 
   std::string locale = g_browser_process->GetApplicationLocale();
-  std::string product_tour_url = StringPrintf(
+  std::string product_tour_url = base::StringPrintf(
       kProductTourBaseURL, locale.c_str());
   html_source->AddString("productTourUrl", product_tour_url);
 

chrome/browser/web_applications/web_app_win.cc

@@ -154,7 +154,7 @@ std::vector<base::FilePath> MatchingShortcutsForProfileAndExtension(
     base::FilePath shortcut_file = base_path;
     if (i) {
       shortcut_file = shortcut_file.InsertBeforeExtensionASCII(
-          StringPrintf(" (%d)", i));
+          base::StringPrintf(" (%d)", i));
     }
     if (file_util::PathExists(shortcut_file) &&
         ShortcutIsForProfile(shortcut_file, profile_path)) {
@@ -281,7 +281,7 @@ bool CreatePlatformShortcuts(
       continue;
     } else if (unique_number > 0) {
       shortcut_file = shortcut_file.InsertBeforeExtensionASCII(
-          StringPrintf(" (%d)", unique_number));
+          base::StringPrintf(" (%d)", unique_number));
     }
 
     base::win::ShortcutProperties shortcut_properties;

chrome/common/cloud_print/cloud_print_helpers.cc

@@ -76,7 +76,7 @@ GURL GetUrlForPrinterList(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "list"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("proxy=%s", proxy_id.c_str());
+  std::string query = base::StringPrintf("proxy=%s", proxy_id.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
@@ -93,7 +93,7 @@ GURL GetUrlForPrinterUpdate(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "update"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("printerid=%s", printer_id.c_str());
+  std::string query = base::StringPrintf("printerid=%s", printer_id.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
@@ -104,7 +104,7 @@ GURL GetUrlForPrinterDelete(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "delete"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf(
+  std::string query = base::StringPrintf(
       "printerid=%s&reason=%s", printer_id.c_str(), reason.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
@@ -116,7 +116,7 @@ GURL GetUrlForJobFetch(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "fetch"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf(
+  std::string query = base::StringPrintf(
       "printerid=%s&deb=%s", printer_id.c_str(), reason.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
@@ -128,7 +128,7 @@ GURL GetUrlForJobDelete(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "deletejob"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("jobid=%s", job_id.c_str());
+  std::string query = base::StringPrintf("jobid=%s", job_id.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
@@ -139,7 +139,7 @@ GURL GetUrlForJobStatusUpdate(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "control"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf(
+  std::string query = base::StringPrintf(
       "jobid=%s&status=%s", job_id.c_str(), status_string.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
@@ -150,7 +150,7 @@ GURL GetUrlForUserMessage(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "message"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("code=%s", message_id.c_str());
+  std::string query = base::StringPrintf("code=%s", message_id.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
@@ -163,9 +163,9 @@ GURL GetUrlForGetAuthCode(const GURL& cloud_print_server_url,
   std::string path(AppendPathToUrl(cloud_print_server_url, "createrobot"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
-  std::string query = StringPrintf("oauth_client_id=%s&proxy=%s",
-                                    oauth_client_id.c_str(),
-                                    proxy_id.c_str());
+  std::string query = base::StringPrintf("oauth_client_id=%s&proxy=%s",
+                                          oauth_client_id.c_str(),
+                                          proxy_id.c_str());
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }
@@ -197,15 +197,15 @@ void AddMultipartValueForUpload(const std::string& value_name,
   // First line is the boundary
   post_data->append("--" + mime_boundary + "\r\n");
   // Next line is the Content-disposition
-  post_data->append(StringPrintf("Content-Disposition: form-data; "
+  post_data->append(base::StringPrintf("Content-Disposition: form-data; "
                    "name=\"%s\"\r\n", value_name.c_str()));
   if (!content_type.empty()) {
     // If Content-type is specified, the next line is that
-    post_data->append(StringPrintf("Content-Type: %s\r\n",
+    post_data->append(base::StringPrintf("Content-Type: %s\r\n",
                       content_type.c_str()));
   }
   // Leave an empty line and append the value.
-  post_data->append(StringPrintf("\r\n%s\r\n", value.c_str()));
+  post_data->append(base::StringPrintf("\r\n%s\r\n", value.c_str()));
 }
 
 std::string GetMultipartMimeType(const std::string& mime_boundary) {
@@ -239,12 +239,12 @@ std::string GetPostDataForPrinterTags(
       NOTREACHED();
     }
     // All our tags have a special prefix to identify them as such.
-    std::string msg = StringPrintf("%s%s=%s",
+    std::string msg = base::StringPrintf("%s%s=%s",
         proxy_tag_prefix.c_str(), it->first.c_str(), it->second.c_str());
     AddMultipartValueForUpload(kPrinterTagValue, msg, mime_boundary,
         std::string(), &post_data);
   }
-  std::string tags_hash_msg = StringPrintf("%s=%s",
+  std::string tags_hash_msg = base::StringPrintf("%s=%s",
       tags_hash_tag_name.c_str(),
       HashPrinterTags(printer_tags_prepared).c_str());
   AddMultipartValueForUpload(kPrinterTagValue, tags_hash_msg, mime_boundary,
@@ -253,7 +253,7 @@ std::string GetPostDataForPrinterTags(
 }
 
 std::string GetCloudPrintAuthHeader(const std::string& auth_token) {
-  return StringPrintf("Authorization: OAuth %s", auth_token.c_str());
+  return base::StringPrintf("Authorization: OAuth %s", auth_token.c_str());
 }
 
 }  // namespace cloud_print

chrome/common/cloud_print/cloud_print_helpers_unittest.cc

@@ -83,7 +83,7 @@ TEST(CloudPrintHelpersTest, GetHashOfPrinterTags) {
   printer_tags["tag2"] = std::string("value2");
 
   chrome::VersionInfo version_info;
-  std::string expected_list_string = StringPrintf(
+  std::string expected_list_string = base::StringPrintf(
       "chrome_version%ssystem_name%ssystem_version%stag1value1tag2value2",
       version_info.CreateVersionString().c_str(),
       base::SysInfo::OperatingSystemName().c_str(),

chrome/common/metrics/variations/uniformity_field_trials.cc

@@ -28,8 +28,8 @@ void SetupSingleUniformityFieldTrial(
 
   DCHECK_EQ(100 % num_trial_groups, 0);
   const int group_percent = 100 / num_trial_groups;
-  const std::string trial_name = StringPrintf(trial_name_string.c_str(),
-                                              group_percent);
+  const std::string trial_name = base::StringPrintf(trial_name_string.c_str(),
+                                                    group_percent);
 
   DVLOG(1) << "Trial name = " << trial_name;
 
@@ -48,7 +48,8 @@ void SetupSingleUniformityFieldTrial(
   // Loop starts with group 1 because the field trial automatically creates a
   // default group, which would be group 0.
   for (int group_number = 1; group_number < num_trial_groups; ++group_number) {
-    const std::string group_name = StringPrintf("group_%02d", group_number);
+    const std::string group_name =
+          base::StringPrintf("group_%02d", group_number);
     DVLOG(1) << "    Group name = " << group_name;
     trial->AppendGroup(group_name, kProbabilityPerGroup);
     chrome_variations::AssociateGoogleVariationID(

chrome/common/omaha_query_params.cc

@@ -91,12 +91,13 @@ const char* GetChannelString() {
 namespace chrome {
 
 std::string OmahaQueryParams::Get(ProdId prod) {
-  return StringPrintf("os=%s&arch=%s&prod=%s&prodchannel=%s&prodversion=%s",
-                      kOs,
-                      kArch,
-                      GetProdIdString(prod),
-                      GetChannelString(),
-                      chrome::VersionInfo().Version().c_str());
+  return base::StringPrintf(
+      "os=%s&arch=%s&prod=%s&prodchannel=%s&prodversion=%s",
+      kOs,
+      kArch,
+      GetProdIdString(prod),
+      GetChannelString(),
+      chrome::VersionInfo().Version().c_str());
 }
 
 }  // namespace chrome

chrome/common/thumbnail_score.cc

@@ -70,15 +70,16 @@ bool ThumbnailScore::Equals(const ThumbnailScore& rhs) const {
 }
 
 std::string ThumbnailScore::ToString() const {
-  return StringPrintf("boring_score: %f, at_top %d, good_clipping %d, "
-                      "load_completed: %d, "
-                      "time_at_snapshot: %f, redirect_hops_from_dest: %d",
-                      boring_score,
-                      at_top,
-                      good_clipping,
-                      load_completed,
-                      time_at_snapshot.ToDoubleT(),
-                      redirect_hops_from_dest);
+  return base::StringPrintf(
+      "boring_score: %f, at_top %d, good_clipping %d, "
+      "load_completed: %d, "
+      "time_at_snapshot: %f, redirect_hops_from_dest: %d",
+      boring_score,
+      at_top,
+      good_clipping,
+      load_completed,
+      time_at_snapshot.ToDoubleT(),
+      redirect_hops_from_dest);
 }
 
 bool ShouldReplaceThumbnailWith(const ThumbnailScore& current,

chrome/renderer/autofill/form_autofill_browsertest.cc

@@ -95,7 +95,7 @@ class FormAutofillTest : public ChromeRenderViewTest {
       expected.value = values[i];
       expected.form_control_type = control_types[i];
       expected.max_length = max_length;
-      SCOPED_TRACE(StringPrintf("i: %" PRIuS, i));
+      SCOPED_TRACE(base::StringPrintf("i: %" PRIuS, i));
       EXPECT_FORM_FIELD_DATA_EQUALS(expected, fields[i]);
     }
   }

chrome/renderer/autofill/password_generation_manager_browsertest.cc

@@ -82,7 +82,7 @@ class PasswordGenerationManagerTest : public ChromeRenderViewTest {
   void SetNotBlacklistedMessage(const char* form_str) {
     content::PasswordForm form;
     form.origin =
-        GURL(StringPrintf("data:text/html;charset=utf-8,%s", form_str));
+        GURL(base::StringPrintf("data:text/html;charset=utf-8,%s", form_str));
     AutofillMsg_FormNotBlacklisted msg(0, form);
     generation_manager_->OnMessageReceived(msg);
   }

chrome/renderer/printing/print_web_view_helper.cc

@@ -63,7 +63,7 @@ void ExecuteScript(WebKit::WebFrame* frame,
                    const base::Value& parameters) {
   std::string json;
   base::JSONWriter::Write(&parameters, &json);
-  std::string script = StringPrintf(script_format, json.c_str());
+  std::string script = base::StringPrintf(script_format, json.c_str());
   frame->executeScript(WebKit::WebString(UTF8ToUTF16(script)));
 }
 
@@ -438,7 +438,7 @@ void PrintWebViewHelper::PrintHeaderAndFooter(
   options->SetDouble("topMargin", page_layout.margin_top);
   options->SetDouble("bottomMargin", page_layout.margin_bottom);
   options->SetString("pageNumber",
-                     StringPrintf("%d/%d", page_number, total_pages));
+                     base::StringPrintf("%d/%d", page_number, total_pages));
 
   ExecuteScript(frame, kPageSetupScriptFormat, *options);
 

chrome/renderer/safe_browsing/phishing_term_feature_extractor_unittest.cc

@@ -206,7 +206,7 @@ TEST_F(PhishingTermFeatureExtractorTest, Continuation) {
   // correctly, the extractor has to process the entire string of text.
   string16 page_text(ASCIIToUTF16("one "));
   for (int i = 0; i < 28; ++i) {
-    page_text.append(ASCIIToUTF16(StringPrintf("%d ", i)));
+    page_text.append(ASCIIToUTF16(base::StringPrintf("%d ", i)));
   }
   page_text.append(ASCIIToUTF16("two"));
 
@@ -274,7 +274,7 @@ TEST_F(PhishingTermFeatureExtractorTest, Continuation) {
 TEST_F(PhishingTermFeatureExtractorTest, PartialExtractionTest) {
   scoped_ptr<string16> page_text(new string16(ASCIIToUTF16("one ")));
   for (int i = 0; i < 28; ++i) {
-    page_text->append(ASCIIToUTF16(StringPrintf("%d ", i)));
+    page_text->append(ASCIIToUTF16(base::StringPrintf("%d ", i)));
   }
 
   base::TimeTicks now = base::TimeTicks::Now();
@@ -295,7 +295,7 @@ TEST_F(PhishingTermFeatureExtractorTest, PartialExtractionTest) {
 
   page_text.reset(new string16());
   for (int i = 30; i < 58; ++i) {
-    page_text->append(ASCIIToUTF16(StringPrintf("%d ", i)));
+    page_text->append(ASCIIToUTF16(base::StringPrintf("%d ", i)));
   }
   page_text->append(ASCIIToUTF16("multi word test "));
   features.Clear();

chrome/renderer/searchbox/searchbox_extension.cc

@@ -66,14 +66,14 @@ void Dispatch(WebKit::WebFrame* frame, const WebKit::WebString& script) {
 
 v8::Handle<v8::String> GenerateThumbnailURL(uint64 most_visited_item_id) {
   return UTF8ToV8String(
-      StringPrintf("chrome-search://thumb/%s",
-                   base::Uint64ToString(most_visited_item_id).c_str()));
+      base::StringPrintf("chrome-search://thumb/%s",
+                         base::Uint64ToString(most_visited_item_id).c_str()));
 }
 
 v8::Handle<v8::String> GenerateFaviconURL(uint64 most_visited_item_id) {
   return UTF8ToV8String(
-      StringPrintf("chrome-search://favicon/%s",
-                   base::Uint64ToString(most_visited_item_id).c_str()));
+      base::StringPrintf("chrome-search://favicon/%s",
+                         base::Uint64ToString(most_visited_item_id).c_str()));
 }
 
 const GURL MostVisitedItemIDToURL(

chrome/service/cloud_print/cloud_print_helpers.cc

@@ -52,14 +52,14 @@ GURL GetUrlForJobStatusUpdate(const GURL& cloud_print_server_url,
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
   std::string query =
-      StringPrintf("jobid=%s&status=%s&code=%d&message=%s"
-                   "&numpages=%d&pagesprinted=%d",
-                   job_id.c_str(),
-                   status_string.c_str(),
-                   details.platform_status_flags,
-                   details.status_message.c_str(),
-                   details.total_pages,
-                   details.pages_printed);
+      base::StringPrintf("jobid=%s&status=%s&code=%d&message=%s"
+                         "&numpages=%d&pagesprinted=%d",
+                         job_id.c_str(),
+                         status_string.c_str(),
+                         details.platform_status_flags,
+                         details.status_message.c_str(),
+                         details.total_pages,
+                         details.pages_printed);
   replacements.SetQueryStr(query);
   return cloud_print_server_url.ReplaceComponents(replacements);
 }

chrome/service/cloud_print/cloud_print_helpers_unittest.cc

@@ -53,7 +53,7 @@ TEST(CloudPrintServiceHelpersTest, GetHashOfPrinterInfo) {
   printer_info.options["tag2"] = std::string("value2");
 
   chrome::VersionInfo version_info;
-  std::string expected_list_string = StringPrintf(
+  std::string expected_list_string = base::StringPrintf(
       "chrome_version%ssystem_name%ssystem_version%stag1value1tag2value2",
       version_info.CreateVersionString().c_str(),
       base::SysInfo::OperatingSystemName().c_str(),

chrome/service/cloud_print/printer_job_handler_unittest.cc

@@ -38,6 +38,8 @@ namespace cloud_print {
 
 namespace {
 
+using base::StringPrintf;
+
 const char kExampleCloudPrintServerURL[] = "https://www.google.com/cloudprint/";
 
 const char kExamplePrintTicket[] = "{\"MediaType\":\"plain\","

chrome/test/automation/proxy_launcher.cc

@@ -55,7 +55,7 @@ void UpdateHistoryDates(const base::FilePath& user_data_dir) {
   ASSERT_TRUE(db.Open(history));
   base::Time yesterday = base::Time::Now() - base::TimeDelta::FromDays(1);
   std::string yesterday_str = base::Int64ToString(yesterday.ToInternalValue());
-  std::string query = StringPrintf(
+  std::string query = base::StringPrintf(
       "UPDATE segment_usage "
       "SET time_slot = %s "
       "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);",
@@ -155,8 +155,9 @@ void ProxyLauncher::CloseBrowserAndServer() {
   // the UI tests in single-process mode.
   // TODO(jhughes): figure out why this is necessary at all, and fix it
   AssertAppNotRunning(
-      StringPrintf("Unable to quit all browser processes. Original PID %d",
-                   process_id_));
+      base::StringPrintf(
+          "Unable to quit all browser processes. Original PID %d",
+          process_id_));
 
   DisconnectFromRunningBrowser();
 }
@@ -315,7 +316,7 @@ void ProxyLauncher::AssertAppNotRunning(const std::string& error_message) {
     final_error_message += " Leftover PIDs: [";
     for (ChromeProcessList::const_iterator it = processes.begin();
          it != processes.end(); ++it) {
-      final_error_message += StringPrintf(" %d", *it);
+      final_error_message += base::StringPrintf(" %d", *it);
     }
     final_error_message += " ]";
   }