Reland of TransportController refactoring.

talk/session/media/channelmanager.h

Index: talk/session/media/channelmanager.h
diff --git a/talk/session/media/channelmanager.h b/talk/session/media/channelmanager.h
index 3bfef84de2915328c514e3e7d149753557fcbf90..31fec0e2144c6ab12b3eaaa34e035bb4df043969 100644
--- a/talk/session/media/channelmanager.h
+++ b/talk/session/media/channelmanager.h
@@ -105,11 +105,10 @@
   void Terminate();
 
   // The operations below all occur on the worker thread.
-
   // Creates a voice channel, to be associated with the specified session.
   VoiceChannel* CreateVoiceChannel(
       webrtc::MediaControllerInterface* media_controller,
-      BaseSession* session,
+      TransportController* transport_controller,
       const std::string& content_name,
       bool rtcp,
       const AudioOptions& options);
@@ -119,15 +118,16 @@
   // associated with the specified session.
   VideoChannel* CreateVideoChannel(
       webrtc::MediaControllerInterface* media_controller,
-      BaseSession* session,
+      TransportController* transport_controller,
       const std::string& content_name,
       bool rtcp,
       const VideoOptions& options);
   // Destroys a video channel created with the Create API.
   void DestroyVideoChannel(VideoChannel* video_channel);
-  DataChannel* CreateDataChannel(
-      BaseSession* session, const std::string& content_name,
-      bool rtcp, DataChannelType data_channel_type);
+  DataChannel* CreateDataChannel(TransportController* transport_controller,
+                                 const std::string& content_name,
+                                 bool rtcp,
+                                 DataChannelType data_channel_type);
   // Destroys a data channel created with the Create API.
   void DestroyDataChannel(DataChannel* data_channel);
 
@@ -251,21 +251,22 @@
   void Terminate_w();
   VoiceChannel* CreateVoiceChannel_w(
       webrtc::MediaControllerInterface* media_controller,
-      BaseSession* session,
+      TransportController* transport_controller,
       const std::string& content_name,
       bool rtcp,
       const AudioOptions& options);
   void DestroyVoiceChannel_w(VoiceChannel* voice_channel);
   VideoChannel* CreateVideoChannel_w(
       webrtc::MediaControllerInterface* media_controller,
-      BaseSession* session,
+      TransportController* transport_controller,
       const std::string& content_name,
       bool rtcp,
       const VideoOptions& options);
   void DestroyVideoChannel_w(VideoChannel* video_channel);
-  DataChannel* CreateDataChannel_w(
-      BaseSession* session, const std::string& content_name,
-      bool rtcp, DataChannelType data_channel_type);
+  DataChannel* CreateDataChannel_w(TransportController* transport_controller,
+                                   const std::string& content_name,
+                                   bool rtcp,
+                                   DataChannelType data_channel_type);
   void DestroyDataChannel_w(DataChannel* data_channel);
   bool SetAudioOptions_w(const AudioOptions& options, int delay_offset,
                          const Device* in_dev, const Device* out_dev);