Reland of: Separating SCTP code from BaseChannel/MediaChannel.

webrtc/media/base/fakemediaengine.h

Index: webrtc/media/base/fakemediaengine.h
diff --git a/webrtc/media/base/fakemediaengine.h b/webrtc/media/base/fakemediaengine.h
index 932427b9b41ef845dbab57da9a1e84d5fb01d649..cbd4e6ef268046de645d5843582fc24c4af8a2dd 100644
--- a/webrtc/media/base/fakemediaengine.h
+++ b/webrtc/media/base/fakemediaengine.h
@@ -942,11 +942,9 @@ inline FakeVideoMediaChannel::~FakeVideoMediaChannel() {
 
 class FakeDataEngine : public DataEngineInterface {
  public:
-  FakeDataEngine() : last_channel_type_(DCT_NONE) {}
+  FakeDataEngine(){};
 
-  virtual DataMediaChannel* CreateChannel(DataChannelType data_channel_type,
-                                          const MediaConfig& config) {
-    last_channel_type_ = data_channel_type;
+  virtual DataMediaChannel* CreateChannel(const MediaConfig& config) {
     FakeDataMediaChannel* ch = new FakeDataMediaChannel(this, DataOptions());
     channels_.push_back(ch);
     return ch;
@@ -966,12 +964,9 @@ class FakeDataEngine : public DataEngineInterface {
 
   virtual const std::vector<DataCodec>& data_codecs() { return data_codecs_; }
 
-  DataChannelType last_channel_type() const { return last_channel_type_; }
-
  private:
   std::vector<FakeDataMediaChannel*> channels_;
   std::vector<DataCodec> data_codecs_;
-  DataChannelType last_channel_type_;
 };
 
 }  // namespace cricket