Fix problems with gtest_enable_absl_printers and enable by default.

* With this turned on, gtest unconditionally asks absl to initialize
  the symbol handler.  This causes base's attempt to do the same thing
  to fail.  Make base handle this by trying a force-reinit if this
  failure occurs.
* Allow gtest to see the full absl sources, since it unconditionally
  #includes banned headers.
* Fix include dirs not being set correctly, leading to compile failures.
* Narrow gtest absl dependency from public_deps to deps, since we don't
  want "all targets depending on gtest" to silently be able to use absl.
* Leave this flag disabled by default for NaCl, since the toolchain
  there can't compile some of the absl code.

Bug: none
Change-Id: I24930d1c2086bec1522922665708abee5ce8fc08
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2332038
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Bruce Dawson <brucedawson@chromium.org>
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Cr-Commit-Position: refs/heads/master@{#793786}

base/debug/stack_trace_win.cc

@@ -118,6 +118,28 @@ FilePath GetExePath() {
   return FilePath(system_buffer);
 }
 
+bool SymInitializeCurrentProc() {
+  const HANDLE current_process = GetCurrentProcess();
+  if (SymInitialize(current_process, nullptr, TRUE))
+    return true;
+
+  g_init_error = GetLastError();
+  if (g_init_error != ERROR_INVALID_PARAMETER)
+    return false;
+
+  // SymInitialize() can fail with ERROR_INVALID_PARAMETER when something has
+  // already called SymInitialize() in this process. For example, when absl
+  // support for gtest is enabled, it results in absl calling SymInitialize()
+  // almost immediately after startup. In such a case, try to reinit to see if
+  // that succeeds.
+  SymCleanup(current_process);
+  if (SymInitialize(current_process, nullptr, TRUE))
+    return true;
+
+  g_init_error = GetLastError();
+  return false;
+}
+
 bool InitializeSymbols() {
   if (g_initialized_symbols) {
     // Force a reinitialization. Will ensure any modules loaded after process
@@ -131,10 +153,7 @@ bool InitializeSymbols() {
   SymSetOptions(SYMOPT_DEFERRED_LOADS |
                 SYMOPT_UNDNAME |
                 SYMOPT_LOAD_LINES);
-  if (!SymInitialize(GetCurrentProcess(), NULL, TRUE)) {
+  if (!SymInitializeCurrentProc()) {
-    g_init_error = GetLastError();
-    // TODO(awong): Handle error: SymInitialize can fail with
-    // ERROR_INVALID_PARAMETER.
     // When it fails, we should not call debugbreak since it kills the current
     // process (prevents future tests from running or kills the browser
     // process).

build_overrides/build.gni

@@ -27,8 +27,9 @@ declare_args() {
   # TODO(crbug/1006769): Switch to perfetto's client library.
   use_perfetto_client_library = false
 
-  # Allows googletest to pretty-print various absl types.
+  # Allows googletest to pretty-print various absl types.  Disabled for nacl due
-  gtest_enable_absl_printers = false
+  # to lack of toolchain support.
+  gtest_enable_absl_printers = !is_nacl
 }
 
 # Allows different projects to specify their own suppression/ignore lists for

third_party/abseil-cpp/absl.gni

@@ -53,6 +53,10 @@ template("absl_source_set") {
           # Abseil itself.
           "//third_party/abseil-cpp/*",
 
+          # GTest.  It unconditionally #includes any.h if pretty-print support
+          # for absl types is enabled.
+          "//third_party/googletest/*",
+
           # WebRTC binary to run PSNR and SSIM video quality analysis. It
           # statically links absl and it is used by "browser_tests" when
           # is_component_build=false but it cannot depend on the absl

third_party/googletest/BUILD.gn

@@ -34,7 +34,8 @@ config("gtest_config") {
     cflags = [ "/wd4800" ]  # Unused variable warning.
   }
 
-  if (!build_with_chromium && gtest_enable_absl_printers) {
+  if (gtest_enable_absl_printers) {
+    configs = [ "//third_party/abseil-cpp:absl_include_config" ]
     defines += [ "GTEST_HAS_ABSL=1" ]
   }
 }
@@ -111,9 +112,6 @@ source_set("gtest") {
   include_dirs = [ "src/googletest" ]
 
   public_configs = [ ":gtest_config" ]
-  if (!build_with_chromium && gtest_enable_absl_printers) {
-    public_configs += [ "//third_party/abseil-cpp:absl_include_config" ]
-  }
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
@@ -127,11 +125,6 @@ source_set("gtest") {
       "custom/gtest/internal/custom/stack_trace_getter.cc",
       "custom/gtest/internal/custom/stack_trace_getter.h",
     ]
-    if (gtest_enable_absl_printers) {
-      public_deps += [
-        "//third_party/abseil-cpp:absl",
-      ]
-    }
   } else {
     deps += [ "//base" ]
   }
@@ -142,6 +135,10 @@ source_set("gtest") {
       "//third_party/fuchsia-sdk/sdk/pkg/zx",
     ]
   }
+
+  if (gtest_enable_absl_printers) {
+    deps += [ "//third_party/abseil-cpp:absl" ]
+  }
 }
 
 # Do NOT depend on this directly. Use //testing/gtest:gtest_main instead.