Do the ReloadLocaleResources() call on the IO thread to avoid synchronization issues.

chrome/test/base/ui_test_utils.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 "chrome/test/base/ui_test_utils.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/rand_util.h"
 #include "base/string_number_conversions.h"
 #include "base/test/test_timeouts.h"
+#include "base/threading/platform_thread.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_test_util.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
@@ skipping 335 matching lines @@
 Browser* WaitForBrowserNotInSet(std::set<Browser*> excluded_browsers) {
   Browser* new_browser = GetBrowserNotInSet(excluded_browsers);
   if (new_browser == NULL) {
     new_browser = WaitForNewBrowser();
     // The new browser should never be in |excluded_browsers|.
     DCHECK(!ContainsKey(excluded_browsers, new_browser));
   }
   return new_browser;
 }
 
+void WaitEventSignaled(base::WaitableEvent* event) {
+  while (!event->IsSignaled()) {
+    base::PlatformThread::YieldCurrentThread();
+    RunAllPendingInMessageLoop();
+  }
+}
+
 void OpenURLOffTheRecord(Profile* profile, const GURL& url) {
   Browser::OpenURLOffTheRecord(profile, url);
   Browser* browser = browser::FindTabbedBrowser(
       profile->GetOffTheRecordProfile(), false);
   WaitForNavigations(&browser->GetSelectedWebContents()->GetController(), 1);
 }
 
 void NavigateToURL(browser::NavigateParams* params) {
   content::TestNavigationObserver observer(
       content::NotificationService::AllSources(), NULL, 1);
@@ skipping 873 matching lines @@
                int state,
                const base::Closure& followup) {
   if (!followup.is_null())
     ui_controls::SendMouseEventsNotifyWhenDone(button, state, followup);
   else
     ui_controls::SendMouseEvents(button, state);
 }
 
 }  // namespace internal
 }  // namespace ui_test_utils