Add video-rendering to mojo media pipeline.

chromecast/browser/media/cast_renderer.cc

Index: chromecast/browser/media/cast_renderer.cc
diff --git a/chromecast/browser/media/cast_renderer.cc b/chromecast/browser/media/cast_renderer.cc
index a6d3c3a293deee95d3dcc2396c4d095c577a35f6..f267242f3e2dbc8f4bda1972f1053e07962a12ac 100644
--- a/chromecast/browser/media/cast_renderer.cc
+++ b/chromecast/browser/media/cast_renderer.cc
@@ -47,6 +47,7 @@ void CastRenderer::Initialize(
     const ::media::PipelineStatusCB& init_cb,
     const ::media::StatisticsCB& statistics_cb,
     const ::media::BufferingStateCB& buffering_state_cb,
+    const ::media::NaturalSizeChangedCB& natural_size_changed_cb,
     const base::Closure& ended_cb,
     const ::media::PipelineStatusCB& error_cb,
     const base::Closure& waiting_for_decryption_key_cb) {
@@ -100,13 +101,13 @@ void CastRenderer::Initialize(
       demuxer_stream_provider->GetStream(::media::DemuxerStream::VIDEO);
   if (video_stream) {
     VideoPipelineClient video_client;
-    // TODO(alokp): Set VideoPipelineClient::natural_size_changed_cb.
     video_client.av_pipeline_client.wait_for_key_cb =
         waiting_for_decryption_key_cb;
     video_client.av_pipeline_client.eos_cb =
         base::Bind(&CastRenderer::OnEos, base::Unretained(this), STREAM_VIDEO);
     video_client.av_pipeline_client.playback_error_cb = error_cb;
     video_client.av_pipeline_client.statistics_cb = statistics_cb;
+    video_client.natural_size_changed_cb = natural_size_changed_cb;
     // TODO(alokp): Change MediaPipelineImpl API to accept a single config
     // after CmaRenderer is deprecated.
     std::vector<::media::VideoDecoderConfig> video_configs;