Copy the (early prototype of) remoting in Chrome into the public tree....

remoting/client/plugin/chromotocol.h

+// 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.
+
+#ifndef REMOTING_CLIENT_PLUGIN_CHROMOTOCOL_H_
+#define REMOTING_CLIENT_PLUGIN_CHROMOTOCOL_H_
+
+#include "base/scoped_ptr.h"
+
+namespace remoting {
+
+class HostConnection;
+
+enum ControlMessage {
+  MessageInit,
+  MessageUpdate,
+  MessageMouse,
+};
+
+struct InitMessage {
+  int message;
+  int compression;
+  int width;
+  int height;
+};
+
+struct MouseMessage {
+  int message;
+  int x, y;
+  int flags;
+};
+
+enum MouseFlag {
+  LeftDown = 1 << 1,
+  LeftUp = 1 << 2,
+  RightDown = 1 << 3,
+  RightUp = 1 << 4
+};
+
+struct UpdateMessage {
+  int message;
+  int num_diffs;
+  int compression;
+  int compressed_size;
+};
+
+enum ImageFormat {
+  FormatRaw,
+  FormatJpeg,  // Not used
+  FormatPng,   // Not used
+  FormatZlib,  // Not used
+  FormatVp8,
+};
+
+enum Compression {
+  CompressionNone,
+  CompressionZlib,
+};
+
+struct BinaryImageHeader {
+  BinaryImageHeader()
+      : format(FormatRaw), x(0), y(0), width(0), height(0), size(0) {}
+
+  ImageFormat format;
+  int x;
+  int y;
+  int width;
+  int height;
+  int size;
+};
+
+struct BinaryImage {
+  BinaryImageHeader header;
+  scoped_ptr<char> data;
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CLIENT_PLUGIN_CHROMOTOCOL_H_