Chromecast buildfix: update CmaRenderer for Initialize API change.

chromecast/media/cma/filters/cma_renderer.h

Index: chromecast/media/cma/filters/cma_renderer.h
diff --git a/chromecast/media/cma/filters/cma_renderer.h b/chromecast/media/cma/filters/cma_renderer.h
index d1c83ac09ad4ea9ed8cea5d0f399a3444b4c32c8..33fc2b1f1e4e437353b261ddcbbe87e89923d75c 100644
--- a/chromecast/media/cma/filters/cma_renderer.h
+++ b/chromecast/media/cma/filters/cma_renderer.h
@@ -40,7 +40,7 @@ class CmaRenderer : public ::media::Renderer {
   // ::media::Renderer implementation:
   void Initialize(
       ::media::DemuxerStreamProvider* demuxer_stream_provider,
-      const base::Closure& init_cb,
+      const ::media::PipelineStatusCB& init_cb,
       const ::media::StatisticsCB& statistics_cb,
       const ::media::BufferingStateCB& buffering_state_cb,
       const PaintCB& paint_cb,
@@ -86,8 +86,6 @@ class CmaRenderer : public ::media::Renderer {
   void OnFlushDone(::media::PipelineStatus status);
   void OnError(::media::PipelineStatus status);
 
-  void FireAllPendingCallbacks();
-
   // Begin a state transition.
   // Return true if delayed because of a pending state transition.
   void BeginStateTransition();
@@ -104,7 +102,7 @@ class CmaRenderer : public ::media::Renderer {
 
   // Set of callbacks.
   PaintCB paint_cb_;
-  base::Closure init_cb_;
+  ::media::PipelineStatusCB init_cb_;
   ::media::StatisticsCB statistics_cb_;
   base::Closure ended_cb_;
   ::media::PipelineStatusCB error_cb_;