Remove PowerUsageMonitor.

chrome/browser/chrome_browser_main.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/chrome_browser_main.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
@@ skipping 1912 matching lines @@
           browser_process_->variations_service();
       if (variations_service)
         variations_service->PerformPreMainMessageLoopStartup();
 
       translate::TranslateDownloadManager::RequestLanguageList(
           profile_->GetPrefs());
     }
   }
   run_message_loop_ = started;
   browser_creator_.reset();
-
-#if !defined(OS_LINUX) || defined(OS_CHROMEOS)
-  // Collects power-related UMA stats for Windows, Mac, and ChromeOS.
-  // Linux is not supported (crbug.com/426393).
-  power_usage_monitor_.reset(new PowerUsageMonitor());
-  power_usage_monitor_->Start();
-#endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
-
 #endif  // !defined(OS_ANDROID)
 
   PostBrowserStart();
 
   if (parameters().ui_task) {
     parameters().ui_task->Run();
     delete parameters().ui_task;
     run_message_loop_ = false;
   }
 
@@ skipping 161 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(OS_ANDROID)
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }