Revert of Screen.orientation lock API implementation for Windows8 and later.

content/browser/browser_main_loop.h

 // 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.
 
 #ifndef CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include <memory>
 
 #include "base/files/file_path.h"
@@ skipping 70 matching lines @@
 class MediaStreamManager;
 class ResourceDispatcherHostImpl;
 class SaveFileManager;
 class ServiceManagerContext;
 class SpeechRecognitionManagerImpl;
 class StartupTaskRunner;
 struct MainFunctionParams;
 
 #if defined(OS_ANDROID)
 class ScreenOrientationDelegate;
-#elif defined(OS_WIN)
-class ScreenOrientationDelegate;
 #endif
 
 #if defined(USE_X11) && !defined(OS_CHROMEOS)
 namespace internal {
 class GpuDataManagerVisualProxy;
 }
 #endif
 
 // Implements the main browser loop stages called from BrowserMainRunner.
 // See comments in browser_main_parts.h for additional info.
@@ skipping 129 matching lines @@
   // Per-process listener for online state changes.
   std::unique_ptr<BrowserOnlineStateObserver> online_state_observer_;
 
   std::unique_ptr<base::trace_event::TraceEventSystemStatsMonitor>
       system_stats_monitor_;
 
 #if defined(USE_AURA)
   std::unique_ptr<aura::Env> env_;
 #endif
 
-#if defined(OS_WIN)
-  std::unique_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
-#endif
-
 #if defined(OS_ANDROID)
   // Android implementation of ScreenOrientationDelegate
   std::unique_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
 #endif
 
   std::unique_ptr<MemoryObserver> memory_observer_;
 
   // Members initialized in |InitStartupTracingForDuration()| ------------------
   base::FilePath startup_trace_file_;
 
@@ skipping 67 matching lines @@
   scoped_refptr<SaveFileManager> save_file_manager_;
 
   // DO NOT add members here. Add them to the right categories above.
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_