Remove unimplemented VideoChannel code.

talk/session/media/channel.h

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 460 matching lines @@
   bool GetStats(VideoMediaInfo* stats);
 
   sigslot::signal2<VideoChannel*, const std::vector<ConnectionInfo>&>
       SignalConnectionMonitor;
 
   void StartMediaMonitor(int cms);
   void StopMediaMonitor();
   sigslot::signal2<VideoChannel*, const VideoMediaInfo&> SignalMediaMonitor;
   sigslot::signal2<uint32_t, rtc::WindowEvent> SignalScreencastWindowEvent;
 
-  bool SendIntraFrame();
-  bool RequestIntraFrame();
-
   bool SetVideoSend(uint32_t ssrc, bool enable, const VideoOptions* options);
 
  private:
   typedef std::map<uint32_t, VideoCapturer*> ScreencastMap;
 
   // overrides from BaseChannel
   virtual void ChangeState();
   virtual const ContentInfo* GetFirstContent(const SessionDescription* sdesc);
   virtual bool SetLocalContent_w(const MediaContentDescription* content,
                                  ContentAction action,
@@ skipping 149 matching lines @@
   // SetSendParameters.
   DataSendParameters last_send_params_;
   // Last DataRecvParameters sent down to the media_channel() via
   // SetRecvParameters.
   DataRecvParameters last_recv_params_;
 };
 
 }  // namespace cricket
 
 #endif  // TALK_SESSION_MEDIA_CHANNEL_H_