Interface with webrtc through encoded frames

remoting/codec/video_encoder.h

Index: remoting/codec/video_encoder.h
diff --git a/remoting/codec/video_encoder.h b/remoting/codec/video_encoder.h
index 9da447c1336f17394dd54b6d5273f81c4656f48a..bf33f935ea4cb7a2ae973111b85b39f177e15b1d 100644
--- a/remoting/codec/video_encoder.h
+++ b/remoting/codec/video_encoder.h
@@ -19,6 +19,7 @@ class VideoPacket;
 // interface is asynchronous to enable maximum throughput.
 class VideoEncoder {
  public:
+  enum Flags { kRequestKeyFrame = 1 << 0 };
   virtual ~VideoEncoder() {}
 
   // Request that the encoder provide lossless encoding, or color, if possible.
@@ -29,7 +30,8 @@ class VideoEncoder {
   // then the encoder may return a packet (e.g. to top-off previously-encoded
   // portions of the frame to higher quality) or return nullptr to indicate that
   // there is no work to do.
-  virtual scoped_ptr<VideoPacket> Encode(const webrtc::DesktopFrame& frame) = 0;
+  virtual scoped_ptr<VideoPacket> Encode(const webrtc::DesktopFrame& frame,
+                                         uint32_t flags = 0) = 0;
 };
 
 }  // namespace remoting