Plumb render view ID from audio-related code in renderer through IPCs to AudioRendererHost in brows…

content/renderer/media/render_audiosourceprovider.h

Index: content/renderer/media/render_audiosourceprovider.h
diff --git a/content/renderer/media/render_audiosourceprovider.h b/content/renderer/media/render_audiosourceprovider.h
index 8dc5788d29663e0d581af0ac7040d05405d7e849..17297c667a033a269c777052215b5483e5c78934 100644
--- a/content/renderer/media/render_audiosourceprovider.h
+++ b/content/renderer/media/render_audiosourceprovider.h
@@ -35,7 +35,7 @@ class RenderAudioSourceProvider
     : public WebKit::WebAudioSourceProvider,
       public media::AudioRendererSink {
  public:
-  RenderAudioSourceProvider();
+  explicit RenderAudioSourceProvider(int render_view_id);
 
   // WebKit::WebAudioSourceProvider implementation.
 
@@ -77,7 +77,7 @@ class RenderAudioSourceProvider
   // default_sink_ is the default sink.
   scoped_refptr<media::AudioRendererSink> default_sink_;
 
-  DISALLOW_COPY_AND_ASSIGN(RenderAudioSourceProvider);
+  DISALLOW_IMPLICIT_CONSTRUCTORS(RenderAudioSourceProvider);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_