Add test for multithreaded ActiveVerifier behavior.

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 313 matching lines @@
 #endif  // defined(OS_WIN)
 
   // In some cases, we do not want to see standard error dialogs.
   if (!debug::BeingDebugged() &&
       !CommandLine::ForCurrentProcess()->HasSwitch("show-error-dialogs")) {
     SuppressErrorDialogs();
     debug::SetSuppressDebugUI(true);
     logging::SetLogAssertHandler(UnitTestAssertHandler);
   }
 
-  i18n::InitializeICU();
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kTestDoNotInitializeIcu)) {
+    i18n::InitializeICU();
+  }
   // On the Mac OS X command line, the default locale is *_POSIX. In Chromium,
   // the locale is set via an OS X locale API and is never *_POSIX.
   // Some tests (such as those involving word break iterator) will behave
   // differently and fail if we use *POSIX locale. Setting it to en_US here
   // does not affect tests that explicitly overrides the locale for testing.
   // This can be an issue on all platforms other than Windows.
   // TODO(jshin): Should we set the locale via an OS X locale API here?
 #if !defined(OS_WIN)
 #if defined(OS_IOS)
   i18n::SetICUDefaultLocale("en_US");
@@ skipping 10 matching lines @@
 
   TestTimeouts::Initialize();
 
   trace_to_file_.BeginTracingFromCommandLineOptions();
 }
 
 void TestSuite::Shutdown() {
 }
 
 }  // namespace base