chromeos: Add support for the battery status API on chromeos.

chrome/browser/chrome_browser_main_extra_parts_ash.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_extra_parts_ash.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/wm/key_rewriter_event_filter.h"
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/views/ash/caps_lock_handler.h"
 #include "chrome/browser/ui/views/ash/chrome_shell_delegate.h"
 #include "chrome/browser/ui/views/ash/key_rewriter.h"
 #include "chrome/browser/ui/views/ash/screen_orientation_listener.h"
 #include "chrome/browser/ui/views/ash/screenshot_taker.h"
 #include "chrome/browser/ui/views/ash/status_area_host_aura.h"
 #include "ui/aura/env.h"
 #include "ui/aura/aura_switches.h"
 #include "ui/aura/monitor_manager.h"
 #include "ui/aura/root_window.h"
 #include "ui/gfx/compositor/compositor_setup.h"
 
 #if defined(OS_CHROMEOS)
 #include "base/chromeos/chromeos_version.h"
+#include "chrome/browser/battery_status_provider_chromeos.h"
 #include "chrome/browser/ui/views/ash/brightness_controller_chromeos.h"
 #include "chrome/browser/ui/views/ash/ime_controller_chromeos.h"
 #include "chrome/browser/ui/views/ash/volume_controller_chromeos.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #endif
 
 ChromeBrowserMainExtraPartsAsh::ChromeBrowserMainExtraPartsAsh()
     : ChromeBrowserMainExtraParts() {
 }
@@ skipping 30 matching lines @@
   shell->accelerator_controller()->SetVolumeControlDelegate(
       scoped_ptr<ash::VolumeControlDelegate>(new VolumeController).Pass());
 
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableZeroBrowsersOpenForTests))
     BrowserList::StartKeepAlive();
 #endif
 
   // Make sure the singleton ScreenOrientationListener object is created.
   ScreenOrientationListener::GetInstance();
+
+#if defined(OS_CHROMEOS)
+  // Make sure the singleton BatteryStatusProviderChromeos object is created.
+  BatteryStatusProviderChromeos::GetInstance();
+#endif
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostProfileInit() {
   // Add the status area buttons after Profile has been initialized.
   if (CommandLine::ForCurrentProcess()->HasSwitch(
         ash::switches::kDisableAshUberTray)) {
     ChromeShellDelegate::instance()->status_area_host()->AddButtons();
   }
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostMainMessageLoopRun() {
   ash::Shell::DeleteInstance();
 }