Add IsSupportedBitstreamAudioCodec() function in MediaClient.

content/public/renderer/content_renderer_client.h

Index: content/public/renderer/content_renderer_client.h
diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
index 0e554ba8467af157948ca32d042f7dbac426df8f..1aef3c7088a353a9f33faf3b7d41be3fd24efbe1 100644
--- a/content/public/renderer/content_renderer_client.h
+++ b/content/public/renderer/content_renderer_client.h
@@ -270,6 +270,9 @@ class CONTENT_EXPORT ContentRendererClient {
   // Allows embedder to describe customized video capabilities.
   virtual bool IsSupportedVideoConfig(const media::VideoConfig& config);
 
+  // Return true if the bitstream format |codec| is supported by the audio sink.
+  virtual bool IsSupportedBitstreamAudio(media::AudioCodec codec);

[DaleCurtis, 2017/06/02 22:34:48]

Seems it should be IsSupportedBistreamAudioCodec?

+
   // Returns true if we should report a detailed message (including a stack
   // trace) for console [logs|errors|exceptions]. |source| is the WebKit-
   // reported source for the error; this can point to a page or a script,