Add a "--silent" flag to our test suite to disable gtest output. This clears up the test logs when …

chrome/browser/chrome_main_browsertest.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/ui/ui_test.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
+#include "base/test/test_suite.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 22 matching lines @@
           iter != switches.end(); ++iter) {
       new_command_line_.AppendSwitchNative((*iter).first, (*iter).second);
     }
 
     FilePath user_data_dir;
     PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
     new_command_line_.AppendSwitchPath(switches::kUserDataDir, user_data_dir);
 
     new_command_line_.AppendSwitchASCII(
         test_launcher::kGTestFilterFlag, test_launcher::kEmptyTestName);
+    new_command_line_.AppendSwitch(TestSuite::kSilent);
   }
 
   void Relaunch() {
     base::LaunchProcess(new_command_line_, base::LaunchOptions(), NULL);
   }
 
  protected:
   CommandLine new_command_line_;
 };
 
@@ skipping 77 matching lines @@
         content::NotificationService::AllSources());
   Relaunch();
   tab_observer.Wait();
 
   // There should be one normal and one incognito window now.
   ASSERT_EQ(2u, BrowserList::size());
   ASSERT_EQ(1u, BrowserList::GetBrowserCountForType(profile, true));
 }
 
 #endif  // !OS_MACOSX