Deprecate VideoDecoder::Reset() and remove calls.

talk/media/webrtc/fakewebrtcvideoengine.h

Index: talk/media/webrtc/fakewebrtcvideoengine.h
diff --git a/talk/media/webrtc/fakewebrtcvideoengine.h b/talk/media/webrtc/fakewebrtcvideoengine.h
index e0d4db52f849b4b9e25233a4cf20751b52206419..aebd843d2f52364256d1b61b67a2699f9f4b4a43 100644
--- a/talk/media/webrtc/fakewebrtcvideoengine.h
+++ b/talk/media/webrtc/fakewebrtcvideoengine.h
@@ -84,8 +84,6 @@ class FakeWebRtcVideoDecoder : public webrtc::VideoDecoder {
 
   virtual int32_t Release() { return WEBRTC_VIDEO_CODEC_OK; }
 
-  virtual int32_t Reset() { return WEBRTC_VIDEO_CODEC_OK; }
-
   int GetNumFramesReceived() const {
     return num_frames_received_;
   }