Cast: Add GetStats() extensions API.

chrome/renderer/media/cast_rtp_stream.cc

 // 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.
 
 #include "chrome/renderer/media/cast_rtp_stream.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/renderer/media/cast_session.h"
@@ skipping 336 matching lines @@
 
 void CastRtpStream::ToggleLogging(bool enable) {
   cast_session_->ToggleLogging(IsAudio(), enable);
 }
 
 void CastRtpStream::GetRawEvents(
     const base::Callback<void(scoped_ptr<std::string>)>& callback) {
   cast_session_->GetEventLogsAndReset(IsAudio(), callback);
 }
 
+void CastRtpStream::GetStats(
+    const base::Callback<void(scoped_ptr<std::string>)>& callback) {
+  cast_session_->GetStatsAndReset(IsAudio(), callback);
+}
+
 bool CastRtpStream::IsAudio() const {
   return track_.source().type() == blink::WebMediaStreamSource::TypeAudio;
 }
 
 void CastRtpStream::DidEncounterError(const std::string& message) {
   error_callback_.Run(message);
   Stop();
 }