Introduce Dolby Vision video codec and Demuxer support

content/renderer/media/render_media_client.cc

Index: content/renderer/media/render_media_client.cc
diff --git a/content/renderer/media/render_media_client.cc b/content/renderer/media/render_media_client.cc
index 3c8d9e1d53e6922f3cef9e5f7090e8c611f874b7..1ec97a92a30f6e93e424ee497a1203b1de3e43e9 100644
--- a/content/renderer/media/render_media_client.cc
+++ b/content/renderer/media/render_media_client.cc
@@ -108,6 +108,7 @@ bool RenderMediaClient::IsSupportedVideoConfig(media::VideoCodec codec,
     case media::kCodecMPEG2:
     case media::kCodecMPEG4:
     case media::kCodecHEVC:
+    case media::kCodecDolbyVision:

[wolenetz, 2017/01/25 23:42:40]

To be clear, is there no MediaClient on chromecast (or is there some other
MediaClient on chromecast that's not this one?)

If this is the MediaClient used on chromecast, then I'm confused how
MimeUtil::AreSupportedCodecs ever indicates support for DV.

[erickung1, 2017/02/03 18:18:31]

cast has its own media::MediaClient implementation
https://cs.chromium.org/chromium/src/chromecast/common/media/cast_media_clien...

       return false;
   }