Implement setSinkId() for media elements without src.

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 866 matching lines @@
 #endif
 
   media::CdmFactory* GetCdmFactory();
 
   void RegisterMojoServices();
 
   // Connects to a Mojo application and returns a proxy to its exposed
   // ServiceProvider.
   mojo::ServiceProviderPtr ConnectToApplication(const GURL& url);
 
+  // Checks that |sink_id| exists and is authorized to be used on
+  // |security_origin|.
+  void checkAudioSink(const blink::WebString& sink_id,
+                      const blink::WebSecurityOrigin& security_origin,
+                      blink::WebSetSinkIdCallbacks* callback) override;
+
   // Stores the WebLocalFrame we are associated with.  This is null from the
   // constructor until SetWebFrame is called, and it is null after
   // frameDetached is called until destruction (which is asynchronous in the
   // case of the main frame, but not subframes).
   blink::WebLocalFrame* frame_;
 
   // Boolean value indicating whether this RenderFrameImpl object is for the
   // main frame or not. It remains accurate during destruction, even when
   // |frame_| has been invalidated.
   bool is_main_frame_;
@@ skipping 182 matching lines @@
 #endif
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_