[Chromecast] Add a custom CastMediaClient for Chromecast

chromecast/media/base/media_codec_support.h

Index: chromecast/media/base/media_codec_support.h
diff --git a/chromecast/media/base/media_codec_support.h b/chromecast/media/base/media_codec_support.h
index 1971ddd034e118ce9ed5e636e6c2d03bd5e5659c..5b8428ee26859ef16f63eeec558700afb062a1bb 100644
--- a/chromecast/media/base/media_codec_support.h
+++ b/chromecast/media/base/media_codec_support.h
@@ -8,7 +8,9 @@
 #include <string>
 
 #include "base/callback.h"
+#include "chromecast/public/media/decoder_config.h"
 #include "media/base/mime_util.h"
+#include "media/base/video_codecs.h"
 
 // TODO(slan|servolk): remove when this definition exists in //media.
 namespace media {
@@ -22,6 +24,9 @@ namespace media {
 // representation of the codec id conforming to RFC 6381) is supported or not.
 ::media::IsCodecSupportedCB GetIsCodecSupportedOnChromecastCB();
 
+VideoCodec ToCastVideoCodec(const ::media::VideoCodec codec);
+VideoProfile ToCastVideoProfile(const ::media::VideoCodecProfile profile);
+
 }  // namespace media
 }  // namespace chromecast