Reland of TransportController refactoring.

talk/session/media/channelmanager.cc

Index: talk/session/media/channelmanager.cc
diff --git a/talk/session/media/channelmanager.cc b/talk/session/media/channelmanager.cc
index c109d60388bb5fb37e4aaa856bbe6b048b292599..11fd41dd14d57607bd6ec04ab52aa79049c27caf 100644
--- a/talk/session/media/channelmanager.cc
+++ b/talk/session/media/channelmanager.cc
@@ -319,23 +319,18 @@
 
 VoiceChannel* ChannelManager::CreateVoiceChannel(
     webrtc::MediaControllerInterface* media_controller,
-    BaseSession* session,
+    TransportController* transport_controller,
     const std::string& content_name,
     bool rtcp,
     const AudioOptions& options) {
   return worker_thread_->Invoke<VoiceChannel*>(
-      Bind(&ChannelManager::CreateVoiceChannel_w,
-          this,
-          media_controller,
-          session,
-          content_name,
-          rtcp,
-          options));
+      Bind(&ChannelManager::CreateVoiceChannel_w, this, media_controller,
+           transport_controller, content_name, rtcp, options));
 }
 
 VoiceChannel* ChannelManager::CreateVoiceChannel_w(
     webrtc::MediaControllerInterface* media_controller,
-    BaseSession* session,
+    TransportController* transport_controller,
     const std::string& content_name,
     bool rtcp,
     const AudioOptions& options) {
@@ -347,9 +342,9 @@
   if (!media_channel)
     return nullptr;
 
-  VoiceChannel* voice_channel = new VoiceChannel(
-      worker_thread_, media_engine_.get(), media_channel,
-      session, content_name, rtcp);
+  VoiceChannel* voice_channel =
+      new VoiceChannel(worker_thread_, media_engine_.get(), media_channel,
+                       transport_controller, content_name, rtcp);
   if (!voice_channel->Init()) {
     delete voice_channel;
     return nullptr;
@@ -380,23 +375,18 @@
 
 VideoChannel* ChannelManager::CreateVideoChannel(
     webrtc::MediaControllerInterface* media_controller,
-    BaseSession* session,
+    TransportController* transport_controller,
     const std::string& content_name,
     bool rtcp,
     const VideoOptions& options) {
   return worker_thread_->Invoke<VideoChannel*>(
-      Bind(&ChannelManager::CreateVideoChannel_w,
-           this,
-           media_controller,
-           session,
-           content_name,
-           rtcp,
-           options));
+      Bind(&ChannelManager::CreateVideoChannel_w, this, media_controller,
+           transport_controller, content_name, rtcp, options));
 }
 
 VideoChannel* ChannelManager::CreateVideoChannel_w(
     webrtc::MediaControllerInterface* media_controller,
-    BaseSession* session,
+    TransportController* transport_controller,
     const std::string& content_name,
     bool rtcp,
     const VideoOptions& options) {
@@ -405,12 +395,12 @@
   ASSERT(nullptr != media_controller);
   VideoMediaChannel* media_channel =
       media_engine_->CreateVideoChannel(media_controller->call_w(), options);
-  if (media_channel == NULL)
+  if (media_channel == NULL) {
     return NULL;
+  }
 
   VideoChannel* video_channel = new VideoChannel(
-      worker_thread_, media_channel,
-      session, content_name, rtcp);
+      worker_thread_, media_channel, transport_controller, content_name, rtcp);
   if (!video_channel->Init()) {
     delete video_channel;
     return NULL;
@@ -441,16 +431,20 @@
 }
 
 DataChannel* ChannelManager::CreateDataChannel(
-    BaseSession* session, const std::string& content_name,
-    bool rtcp, DataChannelType channel_type) {
+    TransportController* transport_controller,
+    const std::string& content_name,
+    bool rtcp,
+    DataChannelType channel_type) {
   return worker_thread_->Invoke<DataChannel*>(
-      Bind(&ChannelManager::CreateDataChannel_w, this, session, content_name,
-           rtcp, channel_type));
+      Bind(&ChannelManager::CreateDataChannel_w, this, transport_controller,
+           content_name, rtcp, channel_type));
 }
 
 DataChannel* ChannelManager::CreateDataChannel_w(
-    BaseSession* session, const std::string& content_name,
-    bool rtcp, DataChannelType data_channel_type) {
+    TransportController* transport_controller,
+    const std::string& content_name,
+    bool rtcp,
+    DataChannelType data_channel_type) {
   // This is ok to alloc from a thread other than the worker thread.
   ASSERT(initialized_);
   DataMediaChannel* media_channel = data_media_engine_->CreateChannel(
@@ -462,8 +456,7 @@
   }
 
   DataChannel* data_channel = new DataChannel(
-      worker_thread_, media_channel,
-      session, content_name, rtcp);
+      worker_thread_, media_channel, transport_controller, content_name, rtcp);
   if (!data_channel->Init()) {
     LOG(LS_WARNING) << "Failed to init data channel.";
     delete data_channel;