[Chromecast] Upgrade to new CMA backend API

chromecast/renderer/media/cma_message_filter_proxy.h

Index: chromecast/renderer/media/cma_message_filter_proxy.h
diff --git a/chromecast/renderer/media/cma_message_filter_proxy.h b/chromecast/renderer/media/cma_message_filter_proxy.h
index ab007118e173038777365402f34614d6be0b3d60..7781338354ad6573ed83326348038c728c1ba381 100644
--- a/chromecast/renderer/media/cma_message_filter_proxy.h
+++ b/chromecast/renderer/media/cma_message_filter_proxy.h
@@ -35,7 +35,7 @@ class CmaMessageFilterProxy : public IPC::MessageFilter {
     ~MediaDelegate();
 
     ::media::PipelineStatusCB state_changed_cb;
-    MediaPipelineClient client;
+    RendererMediaPipelineClient client;
   };
 
   struct AudioDelegate {
@@ -45,7 +45,7 @@ class CmaMessageFilterProxy : public IPC::MessageFilter {
     AvPipeCB av_pipe_cb;
     base::Closure pipe_read_cb;
     ::media::PipelineStatusCB state_changed_cb;
-    AvPipelineClient client;
+    RendererAvPipelineClient client;
   };
 
   struct VideoDelegate {
@@ -55,7 +55,7 @@ class CmaMessageFilterProxy : public IPC::MessageFilter {
     AvPipeCB av_pipe_cb;
     base::Closure pipe_read_cb;
     ::media::PipelineStatusCB state_changed_cb;
-    VideoPipelineClient client;
+    RendererVideoPipelineClient client;
   };
 
   explicit CmaMessageFilterProxy(