Move UpdateStreamEncoding value into the BeginUpdateStreamMessage since we...

remoting/base/protocol/chromotocol.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 communication between chromoting client and host.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package remoting;
 
 // A message that gets sent to the client after the client is connected to the
 // host. It contains information that the client needs to know about the host.
 // NEXT ID: 3
 message InitClientMessage {
   required int32 width = 1;
   required int32 height = 2;
 }
 
 // A message to denote the beginning of an update stream. It will be followed
-// by 0 or more PartialUpdateStream messages and then a EndUpdateStream message.
+// by 0 or more UpdateStreamPacketMessages and then a EndUpdateStreamMessage.
 // NEXT ID: 1
 message BeginUpdateStreamMessage {
 }
 
 // A message to denote the end of an update stream.
 // NEXT ID: 1
 message EndUpdateStreamMessage {
 }
 
 // Identifies how the image was encoded.
 enum UpdateStreamEncoding {
+  EncodingInvalid = -1;
   EncodingNone = 0;
   EncodingZlib = 1;
 }
 
 // Identifies the pixel format.
 // Note that this list should match exactly the same as
 // media::VideoFrame::Format in media/base/video_frame.h.
 enum PixelFormat {
   PixelFormatInvalid = 0;
   PixelFormatRgb555 = 1;
@@ skipping 108 matching lines @@
 message MouseUpEvent {
   enum Button {
     LEFT = 0;
     MIDDLE = 1;
     RIGHT = 2;
   }
   required Button button = 1;
 }
 
 // Defines the message that is sent from the client to the host.
-// Only one of these messages should be present.
+// Only one of the optional messages should be present.
 // NEXT ID: 7
 message ClientMessage {
   optional KeyEvent key_event = 1;
   optional MouseSetPositionEvent mouse_set_position_event = 2;
   optional MouseMoveEvent mouse_move_event = 3;
   optional MouseWheelEvent mouse_wheel_event = 4;
   optional MouseDownEvent mouse_down_event = 5;
   optional MouseUpEvent mouse_up_event = 6;
 }