Move WebScreenOrientationClient to WebFrameClient.

public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 57 matching lines @@
 class WebMediaPlayer;
 class WebMediaPlayerClient;
 class WebMIDIClient;
 class WebNotificationPresenter;
 class WebServiceWorkerProvider;
 class WebServiceWorkerProviderClient;
 class WebSocketHandle;
 class WebNode;
 class WebPlugin;
 class WebRTCPeerConnectionHandler;
+class WebScreenOrientationClient;
 class WebSharedWorker;
 class WebSharedWorkerClient;
 class WebSocketStreamHandle;
 class WebString;
 class WebURL;
 class WebURLLoader;
 class WebURLResponse;
 class WebUserMediaClient;
 class WebWorkerPermissionClientProxy;
 struct WebColorSuggestion;
@@ skipping 413 matching lines @@
     // Extensions3D.h in WebCore/platform/graphics).
     virtual void didLoseWebGLContext(WebLocalFrame*, int) { }
 
     // FIXME: Remove this method once we have input routing in the browser
     // process. See http://crbug.com/339659.
     virtual void forwardInputEvent(const WebInputEvent*) { }
 
     // Send initial drawing parameters to a child frame that is being rendered out of process.
     virtual void initializeChildFrame(const WebRect& frameRect, float scaleFactor) { }
 
+
+    // Screen Orientation --------------------------------------------------
+
+    // Access the embedder API for (client-based) screen orientation client .
+    virtual WebScreenOrientationClient* webScreenOrientationClient() { return 0; }
+
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif