Add WebUserMediaClient getter on RenderFrameImpl in preparation for getting it from WebFrameClient.

content/renderer/render_frame_impl.h

 // Copyright 2013 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_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 15 matching lines @@
 
 class TransportDIB;
 struct FrameMsg_BuffersSwapped_Params;
 struct FrameMsg_CompositorFrameSwapped_Params;
 struct FrameMsg_Navigate_Params;
 
 namespace blink {
 class WebInputEvent;
 class WebMouseEvent;
 class WebContentDecryptionModule;
+class WebMIDIClient;
 class WebNotificationPresenter;
 class WebSecurityOrigin;
 class WebUserMediaClient;
 struct WebCompositionUnderline;
 struct WebContextMenuData;
 struct WebCursorInfo;
 }
 
 namespace gfx {
 class Point;
@@ skipping 291 matching lines @@
   virtual void requestStorageQuota(blink::WebLocalFrame* frame,
                                    blink::WebStorageQuotaType type,
                                    unsigned long long requested_size,
                                    blink::WebStorageQuotaCallbacks callbacks);
   virtual void willOpenSocketStream(
       blink::WebSocketStreamHandle* handle);
   virtual void willStartUsingPeerConnectionHandler(
       blink::WebLocalFrame* frame,
       blink::WebRTCPeerConnectionHandler* handler);
   virtual blink::WebUserMediaClient* userMediaClient();
+  virtual blink::WebMIDIClient* webMIDIClient();
   virtual bool willCheckAndDispatchMessageEvent(
       blink::WebLocalFrame* sourceFrame,
       blink::WebFrame* targetFrame,
       blink::WebSecurityOrigin targetOrigin,
       blink::WebDOMMessageEvent event);
   virtual blink::WebString userAgentOverride(blink::WebLocalFrame* frame,
                                              const blink::WebURL& url);
   virtual blink::WebString doNotTrackValue(blink::WebLocalFrame* frame);
   virtual bool allowWebGL(blink::WebLocalFrame* frame, bool default_value);
   virtual void didLoseWebGLContext(blink::WebLocalFrame* frame,
@@ skipping 165 matching lines @@
 
   // Holds a reference to the service which provides desktop notifications.
   NotificationProvider* notification_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_