Plumb callbacks from mojo media service to client.

media/mojo/clients/mojo_renderer.cc

Index: media/mojo/clients/mojo_renderer.cc
diff --git a/media/mojo/clients/mojo_renderer.cc b/media/mojo/clients/mojo_renderer.cc
index 94b2a57602336995df035ef4be2c1abfe81aa472..6e362fbf855e77b5146dda733d023401d335c7ce 100644
--- a/media/mojo/clients/mojo_renderer.cc
+++ b/media/mojo/clients/mojo_renderer.cc
@@ -11,9 +11,11 @@
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "media/base/demuxer_stream_provider.h"
+#include "media/base/pipeline_status.h"
 #include "media/base/renderer_client.h"
 #include "media/base/video_renderer_sink.h"
 #include "media/mojo/clients/mojo_demuxer_stream_impl.h"
+#include "media/mojo/common/media_type_converters.h"
 #include "media/renderers/video_overlay_factory.h"
 
 namespace media {
@@ -239,6 +241,18 @@ void MojoRenderer::OnVideoOpacityChange(bool opaque) {
   client_->OnVideoOpacityChange(opaque);
 }
 
+void MojoRenderer::OnStatisticsUpdate(mojom::PipelineStatisticsPtr stats) {
+  DVLOG(2) << __FUNCTION__;

[alokp, 2016/06/27 21:50:48]

This fires too often. I would use a level 3 here.

[slan, 2016/06/27 22:19:39]

Done.

+  DCHECK(task_runner_->BelongsToCurrentThread());
+  client_->OnStatisticsUpdate(stats.To<PipelineStatistics>());
+}
+
+void MojoRenderer::OnWaitingForDecryptionKey() {
+  DVLOG(2) << __FUNCTION__;

[alokp, 2016/06/27 21:50:48]

level 1 here.

[slan, 2016/06/27 22:19:39]

Done.

+  DCHECK(task_runner_->BelongsToCurrentThread());
+  client_->OnWaitingForDecryptionKey();
+}
+
 void MojoRenderer::OnConnectionError() {
   DVLOG(1) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());