Remove BrowserThread::UnsafeGetBrowserThread, add UnsafeGetMessageLoopForThread.

chrome/test/base/testing_browser_process.h

Index: chrome/test/base/testing_browser_process.h
diff --git a/chrome/test/base/testing_browser_process.h b/chrome/test/base/testing_browser_process.h
index 2f9dbc8be149fc8a3f3b730c1511a5b7ff83b0af..57587eaa94b8e93e0dea889bd57afab17a70dfd0 100644
--- a/chrome/test/base/testing_browser_process.h
+++ b/chrome/test/base/testing_browser_process.h
@@ -48,15 +48,7 @@ class TestingBrowserProcess : public BrowserProcess {
   virtual ResourceDispatcherHost* resource_dispatcher_host() OVERRIDE;
   virtual MetricsService* metrics_service() OVERRIDE;
   virtual IOThread* io_thread() OVERRIDE;
-
-  virtual base::Thread* file_thread() OVERRIDE;
-  virtual base::Thread* db_thread() OVERRIDE;
   virtual WatchDogThread* watchdog_thread() OVERRIDE;
-
-#if defined(OS_CHROMEOS)
-  virtual base::Thread* web_socket_proxy_thread() OVERRIDE;
-#endif
-
   virtual ProfileManager* profile_manager() OVERRIDE;
   virtual PrefService* local_state() OVERRIDE;
   virtual policy::BrowserPolicyConnector* browser_policy_connector() OVERRIDE;