Add video-rendering to mojo media pipeline.

chromecast/renderer/media/cma_renderer.h

Index: chromecast/renderer/media/cma_renderer.h
diff --git a/chromecast/renderer/media/cma_renderer.h b/chromecast/renderer/media/cma_renderer.h
index c2ae45efff2d4b256656f5f6958c23f0d4eea1d6..a3f326ee5bdb9719c4b7ae8a72cbb70339f6c3d4 100644
--- a/chromecast/renderer/media/cma_renderer.h
+++ b/chromecast/renderer/media/cma_renderer.h
@@ -48,6 +48,7 @@ class CmaRenderer : public ::media::Renderer {
                   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) override;
@@ -115,6 +116,7 @@ class CmaRenderer : public ::media::Renderer {
   base::Closure ended_cb_;
   ::media::PipelineStatusCB error_cb_;
   ::media::BufferingStateCB buffering_state_cb_;
+  ::media::NaturalSizeChangedCB natural_size_changed_cb_;
   base::Closure flush_cb_;
   base::Closure waiting_for_decryption_key_cb_;