[MediaRouter] Implement send binary message from PSDImpl to MRPManager

chrome/browser/media/router/media_router.h

Index: chrome/browser/media/router/media_router.h
diff --git a/chrome/browser/media/router/media_router.h b/chrome/browser/media/router/media_router.h
index 7912cd5f10ce7067b410a277366eb3294b001831..dafc1e58f973015b848fde717ff0fb5e71c6ff81 100644
--- a/chrome/browser/media/router/media_router.h
+++ b/chrome/browser/media/router/media_router.h
@@ -82,12 +82,16 @@ class MediaRouter : public KeyedService {
   virtual void CloseRoute(const MediaRoute::Id& route_id) = 0;
 
   // Posts |message| to a MediaSink connected via MediaRoute with |route_id|.
-  // TODO(imcheng): Support additional data types: Blob, ArrayBuffer,
-  // ArrayBufferView.
   virtual void SendRouteMessage(const MediaRoute::Id& route_id,
                                 const std::string& message,
                                 const SendRouteMessageCallback& callback) = 0;
 
+  // Sends |data| to a MediaSink connected via MediaRoute with |route_id|.

[Kevin M, 2015/07/22 18:31:50]

Can you add some detail to the comment noting why this is different than
SendRouteMessage?

[USE s.singapati at gmail.com, 2015/07/23 19:52:53]

Done.

+  virtual void SendRouteBinaryMessage(
+      const MediaRoute::Id& route_id,
+      const std::vector<uint8_t>& data,

[Kevin M, 2015/07/22 18:31:50]

uint8

[USE s.singapati at gmail.com, 2015/07/23 19:52:53]

Done.

+      const SendRouteMessageCallback& callback) = 0;
+
   // Gets the next batch of messages from one of the routes in |route_ids|.
   // |message_cb|: Invoked with a non-empty list of messages when there are
   //      messages, an empty list when messaging channel had error.