Start PowerUsageMonitor unconditionally from UMA bit.

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>
 #include <string>
@@ skipping 1769 matching lines @@
         variations_service->PerformPreMainMessageLoopStartup();
 
       translate::TranslateDownloadManager::RequestLanguageList(
           profile_->GetPrefs());
     }
   }
   run_message_loop_ = started;
   browser_creator_.reset();
 
 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
-  if (g_browser_process->metrics_service()->reporting_active())
-    content::StartPowerUsageMonitor();
+  content::StartPowerUsageMonitor();
 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
 
   process_power_collector_.reset(new ProcessPowerCollector);
   process_power_collector_->Initialize();
 #endif  // !defined(OS_ANDROID)
 
   PostBrowserStart();
 
   if (parameters().ui_task) {
     parameters().ui_task->Run();
@@ skipping 140 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);
 }