Cast: Add JS API to get raw events logs from cast extension.

chrome/renderer/media/cast_session_delegate.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_MEDIA_CAST_SESSION_DELEGATE_H_
 #define CHROME_RENDERER_MEDIA_CAST_SESSION_DELEGATE_H_
 
+#include <map>
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/default_tick_clock.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_sender.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
@@ skipping 30 matching lines @@
   // called the first media will be restarted. It is strongly recommended not to
   // deliver any data between calling the two methods.
   // It's OK to call only one of the two methods.
   void StartAudio(const media::cast::AudioSenderConfig& config,
                   const FrameInputAvailableCallback& callback);
   void StartVideo(const media::cast::VideoSenderConfig& config,
                   const FrameInputAvailableCallback& callback);
   void StartUDP(const net::IPEndPoint& local_endpoint,
                 const net::IPEndPoint& remote_endpoint);
 
-  // Returns raw event logs in serialized format since last call.
-  void GetEventLogsAndReset(const EventLogsCallback& callback);
+  void ToggleLogging(const int stream_id,

[Alpha Left Google, 2014/02/24 23:25:51]

Is |stream_id| useful given there's already |is_audio|? Also there's no need to
make int/bool as const.

[imcheng, 2014/02/25 08:10:18]

Done and see other reply.

+                     const bool enable,
+                     const bool is_audio);
+  void GetEventLogsAndReset(const EventLogsCallback& callback,
+                            const int stream_id);
 
  protected:
   // Callback with the result of the initialization.
   // If this callback is called with STATUS_INITIALIZED it will report back
   // to the sinks that it's ready to accept incoming audio / video frames.
   void InitializationResult(media::cast::CastInitializationStatus result) const;
 
  private:
   // Start encoding threads and initialize the CastEnvironment.
   void Initialize();
@@ skipping 10 matching lines @@
   scoped_ptr<media::cast::CastSender> cast_sender_;
   scoped_ptr<media::cast::transport::CastTransportSender> cast_transport_;
 
   // Configuration for audio and video.
   scoped_ptr<media::cast::AudioSenderConfig> audio_config_;
   scoped_ptr<media::cast::VideoSenderConfig> video_config_;
 
   FrameInputAvailableCallback audio_frame_input_available_callback_;
   FrameInputAvailableCallback video_frame_input_available_callback_;
 
-  scoped_ptr<media::cast::EncodingEventSubscriber> audio_event_subscriber_;
-  scoped_ptr<media::cast::EncodingEventSubscriber> video_event_subscriber_;
-
   net::IPEndPoint local_endpoint_;
   net::IPEndPoint remote_endpoint_;
   bool transport_configured_;
 
+  typedef std::map<int, linked_ptr<media::cast::EncodingEventSubscriber> >
+      EventSubscriberMap;
+  EventSubscriberMap event_subscriber_map_;
+
   // Proxy to the IO message loop.
   scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSessionDelegate);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_CAST_SESSION_DELEGATE_H_