Add VideoReader and VideoWriter interfaces.

remoting/proto/video.proto

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Protocol for video messages.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
@@ skipping 67 matching lines @@
   //    packets may not be skipped.
   enum Flags {
     FIRST_PACKET = 1;
     LAST_PACKET = 2;
   }
   optional int32 flags = 1 [default = 0];
 
   // The sequence number of the partial data for updating a rectangle.
   optional int32 sequence_number = 2 [default = 0];
 
+  optional int32 timestamp = 3 [default = 0];
+
   // This is provided on the first packet of the rectangle data, when
   // the flags has FIRST_PACKET set.
-  optional VideoPacketFormat format = 3;
+  optional VideoPacketFormat format = 4;
 
-  optional bytes data = 4;
+  optional bytes data = 5;
 }