Cast: Add GetStats() extensions API.

chrome/renderer/extensions/cast_streaming_native_handler.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_CAST_STREAMING_NATIVE_HANDLER_H_
 #define CHROME_RENDERER_EXTENSIONS_CAST_STREAMING_NATIVE_HANDLER_H_
 
 #include <map>
 
 #include "base/memory/linked_ptr.h"
@@ skipping 46 matching lines @@
   void CallCreateCallback(scoped_ptr<CastRtpStream> stream1,
                           scoped_ptr<CastRtpStream> stream2,
                           scoped_ptr<CastUdpTransport> udp_transport);
 
   void CallStartCallback(int stream_id);
   void CallStopCallback(int stream_id);
   void CallErrorCallback(int stream_id, const std::string& message);
 
   void CallGetRawEventsCallback(int transport_id,
                                 scoped_ptr<std::string> raw_events);
+  void CallGetStatsCallback(int transport_id, scoped_ptr<std::string> stats);
 
   // Gets the RTP stream or UDP transport indexed by an ID.
   // If not found, returns NULL and throws a V8 exception.
   CastRtpStream* GetRtpStreamOrThrow(int stream_id) const;
   CastUdpTransport* GetUdpTransportOrThrow(int transport_id) const;
 
   int last_transport_id_;
 
   typedef std::map<int, linked_ptr<CastRtpStream> > RtpStreamMap;
   RtpStreamMap rtp_stream_map_;
 
   typedef std::map<int, linked_ptr<CastUdpTransport> > UdpTransportMap;
   UdpTransportMap udp_transport_map_;
 
   base::WeakPtrFactory<CastStreamingNativeHandler> weak_factory_;
 
   extensions::ScopedPersistent<v8::Function> create_callback_;
 
   typedef std::map<int,
                    linked_ptr<extensions::ScopedPersistent<v8::Function> > >
       RtpStreamCallbackMap;
   RtpStreamCallbackMap get_raw_events_callbacks_;
+  RtpStreamCallbackMap get_stats_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(CastStreamingNativeHandler);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_CAST_STREAMING_NATIVE_HANDLER_H_