Increase timer slack for several browser threads.

chrome/browser/browser_process_impl.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/browser/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 
@@ skipping 812 matching lines @@
       base::Bind(&BrowserProcessImpl::ApplyAllowCrossOriginAuthPromptPolicy,
                  base::Unretained(this)));
   ApplyAllowCrossOriginAuthPromptPolicy();
 }
 
 void BrowserProcessImpl::CreateWatchdogThread() {
   DCHECK(!created_watchdog_thread_ && watchdog_thread_.get() == NULL);
   created_watchdog_thread_ = true;
 
   scoped_ptr<WatchDogThread> thread(new WatchDogThread());
-  if (!thread->Start())
+  base::Thread::Options options;
+  options.timer_slack = base::TIMER_SLACK_MAXIMUM;
+  if (!thread->StartWithOptions(options))
     return;
   watchdog_thread_.swap(thread);
 }
 
 void BrowserProcessImpl::CreateProfileManager() {
   DCHECK(!created_profile_manager_ && profile_manager_.get() == NULL);
   created_profile_manager_ = true;
 
   base::FilePath user_data_dir;
   PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
@@ skipping 262 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)