[Chromecast] Introduce a MediaCapabilitiesShlib::IsSupportedAudioConfig

chromecast/public/media/media_capabilities_shlib.h

Index: chromecast/public/media/media_capabilities_shlib.h
diff --git a/chromecast/public/media/media_capabilities_shlib.h b/chromecast/public/media/media_capabilities_shlib.h
index 98dbe5cd9504ecb89cc1d3441abd30bd67ee2e87..96adfec0bb03aedfcef13586113bc96260d09567 100644
--- a/chromecast/public/media/media_capabilities_shlib.h
+++ b/chromecast/public/media/media_capabilities_shlib.h
@@ -25,6 +25,9 @@ class CHROMECAST_EXPORT MediaCapabilitiesShlib {
   static bool IsSupportedVideoConfig(VideoCodec codec,
                                      VideoProfile profile,
                                      int level);
+
+  // Return true if the platform supports the given audio |config|.
+  static bool IsSupportedAudioConfig(const AudioConfig& config);
 };
 
 }  // namespace media