sensors: Remove prototype implementation

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 "ash/wm/property_util.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/user_gesture_handler.h"
 #include "ui/aura/env.h"
 #include "ui/aura/aura_switches.h"
 #include "ui/aura/client/user_gesture_client.h"
 #include "ui/aura/monitor_manager.h"
 #include "ui/aura/root_window.h"
 #include "ui/gfx/compositor/compositor_setup.h"
 
 #if defined(OS_CHROMEOS)
@@ skipping 45 matching lines @@
       scoped_ptr<ash::CapsLockDelegate>(new CapsLockHandler(xkeyboard)).Pass());
   shell->accelerator_controller()->SetImeControlDelegate(
       scoped_ptr<ash::ImeControlDelegate>(new ImeController).Pass());
   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();
-
   gesture_handler_.reset(new UserGestureHandler);
   aura::client::SetUserGestureClient(
       ash::Shell::GetRootWindow(), gesture_handler_.get());
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostProfileInit() {
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostMainMessageLoopRun() {
   ash::Shell::DeleteInstance();
 }