Add video-rendering to mojo media pipeline.

media/renderers/renderer_impl.cc

Index: media/renderers/renderer_impl.cc
diff --git a/media/renderers/renderer_impl.cc b/media/renderers/renderer_impl.cc
index 38f49d4b66099adbb753cd1cccf67e8d79524e2d..bfe737fffa97b94cbab1b04f339d78b9a511d3e4 100644
--- a/media/renderers/renderer_impl.cc
+++ b/media/renderers/renderer_impl.cc
@@ -86,6 +86,7 @@ void RendererImpl::Initialize(
     const PipelineStatusCB& init_cb,
     const StatisticsCB& statistics_cb,
     const BufferingStateCB& buffering_state_cb,
+    const NaturalSizeChangedCB& natural_size_changed_cb,
     const base::Closure& ended_cb,
     const PipelineStatusCB& error_cb,
     const base::Closure& waiting_for_decryption_key_cb) {
@@ -103,6 +104,7 @@ void RendererImpl::Initialize(
   demuxer_stream_provider_ = demuxer_stream_provider;
   statistics_cb_ = statistics_cb;
   buffering_state_cb_ = buffering_state_cb;
+  natural_size_changed_cb_ = natural_size_changed_cb;
   ended_cb_ = ended_cb;
   error_cb_ = error_cb;
   init_cb_ = init_cb;
@@ -358,6 +360,7 @@ void RendererImpl::InitializeVideoRenderer() {
       cdm_context_, base::Bind(&RendererImpl::OnUpdateStatistics, weak_this_),
       base::Bind(&RendererImpl::OnBufferingStateChanged, weak_this_,
                  &video_buffering_state_),
+      natural_size_changed_cb_,
       base::Bind(&RendererImpl::OnVideoRendererEnded, weak_this_),
       base::Bind(&RendererImpl::OnError, weak_this_),
       base::Bind(&RendererImpl::GetWallClockTimes, base::Unretained(this)),