Revert of Cast:Adding cast_transport_config and cleaning up

media/cast/cast_sender.h

Index: media/cast/cast_sender.h
diff --git a/media/cast/cast_sender.h b/media/cast/cast_sender.h
index 886086f7d417c9b097b826e2d1cfcc8818a08e32..25cac54e46d34d6957e416f839cfcd44bbf0f5e0 100644
--- a/media/cast/cast_sender.h
+++ b/media/cast/cast_sender.h
@@ -51,10 +51,9 @@
   // The callback is called from the main cast thread as soon as
   // the cast sender is done with the frame; it does not mean that the encoded
   // frame has been sent out.
-  virtual void InsertCodedAudioFrame(
-      const transport::EncodedAudioFrame* audio_frame,
-      const base::TimeTicks& recorded_time,
-      const base::Closure callback) = 0;
+  virtual void InsertCodedAudioFrame(const EncodedAudioFrame* audio_frame,
+                                     const base::TimeTicks& recorded_time,
+                                     const base::Closure callback) = 0;
 
  protected:
   virtual ~FrameInput() {}
@@ -85,7 +84,7 @@
 
   // All RTCP packets for the session should be inserted to this object.
   // Can be called from any thread.
-  virtual scoped_refptr<transport::PacketReceiver> packet_receiver() = 0;
+  virtual scoped_refptr<PacketReceiver> packet_receiver() = 0;
 };
 
 }  // namespace cast