Cleanups in the video encoding decoding code. Reenable VP8.

remoting/base/encoder.h

Index: remoting/base/encoder.h
diff --git a/remoting/base/encoder.h b/remoting/base/encoder.h
index f9d4043ac191049ba78974a5143b111d37e4847b..05e40ff866a882e0772d9f273314ce97ec2b1d95 100644
--- a/remoting/base/encoder.h
+++ b/remoting/base/encoder.h
@@ -25,23 +25,12 @@ class CaptureData;
 class Encoder {
  public:
 
-  // EncodingState is a bitfield that tracks the state of the encoding.
-  // An encoding that consists of a single block could concievably be starting
-  // inprogress and ended at the same time.
-  enum {
-    EncodingStarting = 1 << 0,
-    EncodingInProgress = 1 << 1,
-    EncodingEnded = 1 << 2
-  };
-  typedef int EncodingState;
-
   // DataAvailableCallback is called as blocks of data are made available
   // from the encoder. Data made available by the encoder is in the form
   // of HostMessage to reduce the amount of memory copies.
   // The callback takes ownership of the HostMessage and is responsible for
   // deleting it.
-  typedef Callback2<ChromotingHostMessage*,
-                    EncodingState>::Type DataAvailableCallback;
+  typedef Callback1<VideoPacket*>::Type DataAvailableCallback;
 
   virtual ~Encoder() {}