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

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 3ff43f4f901366a17ff68ec30d35224bddbba870..f0b81e1263c0b3b640470a29badf209b78368c90 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2626,7 +2626,7 @@ WebMediaPlayer* RenderViewImpl::createMediaPlayer(
   if (!cmd_line->HasSwitch(switches::kDisableAudio)) {
     // audio_source_provider is a "provider" to WebKit, and a sink
     // from the perspective of the audio renderer.
-    audio_source_provider = new RenderAudioSourceProvider();
+    audio_source_provider = new RenderAudioSourceProvider(routing_id_);
 
     // Add the chrome specific audio renderer, using audio_source_provider
     // as the sink.