Update VideoFramePump to pass un-changed frames to encoders.

remoting/codec/video_encoder_vpx.h

Index: remoting/codec/video_encoder_vpx.h
diff --git a/remoting/codec/video_encoder_vpx.h b/remoting/codec/video_encoder_vpx.h
index d8d39ebdd302f3b24489aec3dc9d97305eacafa9..5edd03c316f3840136eebf325d238530239f8068 100644
--- a/remoting/codec/video_encoder_vpx.h
+++ b/remoting/codec/video_encoder_vpx.h
@@ -76,6 +76,10 @@ class VideoEncoderVpx : public VideoEncoder {
   int active_map_width_;
   int active_map_height_;
 
+  // Number of "top-off" frames we've encoded since we were last passed a
+  // frame containing an actual change. Used only when encoding with top-off.
+  int topoff_frame_count_;

[Sergey Ulanov, 2015/05/26 21:57:22]

nit: initialize the value here instead of constructor (and maybe move the
initializers for other fields here, except use_vp9_)

[Wez, 2015/06/09 01:46:20]

Done.

Although the compiler was quite happy with me double-initializing. :-/

+
   // Used to help initialize VideoPackets from DesktopFrames.
   VideoEncoderHelper helper_;