[headless] Moved headless mode tests into headless namespace.

There are no functional changes.

Change-Id: I8f70868c0fbc6a05382cd3987d8bf08943310285
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4190356
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Peter Kvitek <kvitekp@chromium.org>
Auto-Submit: Peter Kvitek <kvitekp@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1096257}

chrome/browser/headless/headless_mode_browsertest.cc

@@ -37,6 +37,8 @@
 #include "testing/multiprocess_func_list.h"
 #include "ui/gfx/switches.h"
 
+namespace headless {
+
 namespace switches {
 // This switch runs tests in headful mode, intended for experiments only because
 // not all tests are expected to pass in headful mode.
@@ -60,7 +62,8 @@ void HeadlessModeBrowserTest::SetUpCommandLine(
   if (command_line->HasSwitch(switches::kHeadfulMode)) {
     headful_mode_ = true;
   } else {
-    command_line->AppendSwitchASCII(switches::kHeadless, kHeadlessSwitchValue);
+    command_line->AppendSwitchASCII(::switches::kHeadless,
+                                    kHeadlessSwitchValue);
     headless::SetUpCommandLine(command_line);
   }
 }
@@ -79,10 +82,10 @@ void HeadlessModeBrowserTestWithStartWindowMode::SetUpCommandLine(
     case kStartWindowNormal:
       break;
     case kStartWindowMaximized:
-      command_line->AppendSwitch(switches::kStartMaximized);
+      command_line->AppendSwitch(::switches::kStartMaximized);
       break;
     case kStartWindowFullscreen:
-      command_line->AppendSwitch(switches::kStartFullscreen);
+      command_line->AppendSwitch(::switches::kStartFullscreen);
       break;
   }
 }
@@ -93,6 +96,8 @@ void ToggleFullscreenModeSync(Browser* browser) {
   observer.Wait();
 }
 
+namespace {
+
 class HeadlessModeBrowserTestWithUserDataDir : public HeadlessModeBrowserTest {
  public:
   HeadlessModeBrowserTestWithUserDataDir() = default;
@@ -110,7 +115,7 @@ class HeadlessModeBrowserTestWithUserDataDir : public HeadlessModeBrowserTest {
     ASSERT_TRUE(user_data_dir_.CreateUniqueTempDir());
     ASSERT_TRUE(base::IsDirectoryEmpty(user_data_dir()));
 
-    command_line->AppendSwitchPath(switches::kUserDataDir, user_data_dir());
+    command_line->AppendSwitchPath(::switches::kUserDataDir, user_data_dir());
   }
 
   const base::FilePath& user_data_dir() const {
@@ -128,7 +133,7 @@ IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTestWithUserDataDir,
   // expected to fail.
   base::CommandLine command_line(
       base::GetMultiProcessTestChildBaseCommandLine());
-  command_line.AppendSwitchPath(switches::kUserDataDir, user_data_dir());
+  command_line.AppendSwitchPath(::switches::kUserDataDir, user_data_dir());
 
   base::Process child_process =
       base::SpawnMultiProcessTestChild("ChromeProcessSingletonChildProcessMain",
@@ -147,7 +152,7 @@ MULTIPROCESS_TEST_MAIN(ChromeProcessSingletonChildProcessMain) {
 
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   const base::FilePath user_data_dir =
-      command_line->GetSwitchValuePath(switches::kUserDataDir);
+      command_line->GetSwitchValuePath(::switches::kUserDataDir);
   if (user_data_dir.empty())
     return kErrorResultCode;
 
@@ -158,4 +163,8 @@ MULTIPROCESS_TEST_MAIN(ChromeProcessSingletonChildProcessMain) {
   return static_cast<int>(notify_result);
 }
 
+}  // namespace
+
+}  // namespace headless
+
 #endif  // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC)

chrome/browser/headless/headless_mode_browsertest.h

@@ -10,6 +10,8 @@
 #include "content/public/test/browser_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace headless {
+
 class HeadlessModeBrowserTest : public InProcessBrowserTest {
  public:
   static constexpr char kHeadlessSwitchValue[] = "new";
@@ -55,4 +57,6 @@ class HeadlessModeBrowserTestWithStartWindowMode
 // Toggles browser fullscreen mode synchronously.
 void ToggleFullscreenModeSync(Browser* browser);
 
+}  // namespace headless
+
 #endif  // CHROME_BROWSER_HEADLESS_HEADLESS_MODE_BROWSERTEST_H_

chrome/browser/headless/headless_mode_browsertest_linux.cc

@@ -13,6 +13,8 @@
 #include "ui/platform_window/platform_window_delegate.h"
 #include "ui/platform_window/platform_window_init_properties.h"
 
+namespace headless {
+
 namespace {
 
 // Mock platform window delegate for platform window creation.
@@ -42,8 +44,6 @@ class MockPlatformWindowDelegate : public ui::PlatformWindowDelegate {
   void OnMouseEnter() override {}
 };
 
-}  // namespace
-
 IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest, OzonePlatformHeadless) {
   // On Linux, the Native Headless Chrome uses Ozone/Headless.
   ASSERT_NE(ui::OzonePlatform::GetInstance(), nullptr);
@@ -76,3 +76,7 @@ IN_PROC_BROWSER_TEST_P(HeadlessModeBrowserTestWithStartWindowMode,
   // visible.
   EXPECT_TRUE(browser()->window()->IsVisible());
 }
+
+}  // namespace
+
+}  // namespace headless

chrome/browser/headless/headless_mode_browsertest_mac.mm

@@ -11,6 +11,10 @@
 #include "chrome/browser/ui/browser_window.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace headless {
+
+namespace {
+
 INSTANTIATE_TEST_SUITE_P(HeadlessModeBrowserTestWithStartWindowMode,
                          HeadlessModeBrowserTestWithStartWindowMode,
                          testing::Values(kStartWindowNormal,
@@ -74,3 +78,7 @@ IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest,
   EXPECT_TRUE(browser()->window()->IsVisible());
   EXPECT_FALSE(ns_window.visible);
 }
+
+}  // namespace
+
+}  // namespace headless

chrome/browser/headless/headless_mode_browsertest_win.cc

@@ -9,6 +9,10 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"
 
+namespace headless {
+
+namespace {
+
 // A class to expose a protected method for testing purposes.
 class DesktopWindowTreeHostWinWrapper : public views::DesktopWindowTreeHostWin {
  public:
@@ -107,3 +111,7 @@ IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest,
   EXPECT_TRUE(browser()->window()->IsVisible());
   EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));
 }
+
+}  // namespace
+
+}  // namespace headless