Remove RenderViewImpl::device_orientation_dispatcher_ (not used).

content/renderer/render_view_impl.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_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 109 matching lines @@
 class WebHitTestResult;
 #endif
 }
 
 namespace webkit_glue {
 class WebURLResponseExtraDataImpl;
 }
 
 namespace content {
 class BrowserPluginManager;
-class DeviceOrientationDispatcher;
 class DevToolsAgent;
 class DocumentState;
 class ExternalPopupMenu;
 class FaviconHelper;
 class GeolocationDispatcher;
 class HistoryController;
 class HistoryEntry;
 class ImageResourceFetcher;
 class MidiDispatcher;
 class MediaStreamDispatcher;
@@ skipping 918 matching lines @@
   // The push messaging dispatcher attached to this view, lazily initialized.
   PushMessagingDispatcher* push_messaging_dispatcher_;
 
   // The geolocation dispatcher attached to this view, lazily initialized.
   GeolocationDispatcher* geolocation_dispatcher_;
 
   // The speech recognition dispatcher attached to this view, lazily
   // initialized.
   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
 
-  // Device orientation dispatcher attached to this view; lazily initialized.
-  DeviceOrientationDispatcher* device_orientation_dispatcher_;
-
   // MediaStream dispatcher attached to this view; lazily initialized.
   MediaStreamDispatcher* media_stream_dispatcher_;
 
   // BrowserPluginManager attached to this view; lazily initialized.
   scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
 
   // MidiClient attached to this view; lazily initialized.
   MidiDispatcher* midi_dispatcher_;
 
   DevToolsAgent* devtools_agent_;
@@ skipping 117 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_