Support --wait-for-debugger in tests.

base/test/test_suite.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/test/test_suite.h"
 
 #include "base/at_exit.h"
 #include "base/base_paths.h"
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ skipping 263 matching lines @@
   // Suppress the "Debug Assertion Failed" dialog.
   // TODO(hbono): remove this code when gtest has it.
   // http://groups.google.com/d/topic/googletestframework/OjuwNlXy5ac/discussion
   _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
   _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
 #endif  // defined(_DEBUG) && defined(_HAS_EXCEPTIONS) && (_HAS_EXCEPTIONS == 1)
 #endif  // defined(OS_WIN)
 }
 
 void TestSuite::Initialize() {
+#if !defined(OS_IOS)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kWaitForDebugger)) {
+    base::debug::WaitForDebugger(60, true);
+  }
+#endif
+
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   // Some of the app unit tests spin runloops.
   mock_cr_app::RegisterMockCrApp();
 #endif
 
 #if defined(OS_IOS)
   InitIOSTestMessageLoop();
 #endif  // OS_IOS
 
 #if defined(OS_ANDROID)
@@ skipping 34 matching lines @@
   ResetCommandLine();
 #if !defined(OS_IOS)
   AddTestLauncherResultPrinter();
 #endif  // !defined(OS_IOS)
 
   TestTimeouts::Initialize();
 }
 
 void TestSuite::Shutdown() {
 }