Simplify ScreenCapturer interface.

remoting/host/chromoting_messages.h

 // Copyright (c) 2012 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_HOST_CHROMOTING_MESSAGES_H_
 #define REMOTING_HOST_CHROMOTING_MESSAGES_H_
 
 #include "ipc/ipc_platform_file.h"
 #include "media/video/capture/screen/mouse_cursor_shape.h"
 #include "net/base/ip_endpoint.h"
@@ skipping 215 matching lines @@
 IPC_MESSAGE_CONTROL2(ChromotingNetworkDesktopMsg_StartSessionAgent,
                      std::string /* authenticated_jid */,
                      remoting::ScreenResolution /* resolution */)
 
 // Notifies the desktop process that the shared memory buffer has been mapped to
 // the memory of the network process and so it can be safely dropped by
 // the network process at any time.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_SharedBufferCreated,
                      int /* id */)
 
-IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_InvalidateRegion,
-                     std::vector<SkIRect> /* invalid_region */ )
-
 IPC_MESSAGE_CONTROL0(ChromotingNetworkDesktopMsg_CaptureFrame)
 
 // Carries a clipboard event from the client to the desktop session agent.
 // |serialized_event| is a serialized protocol::ClipboardEvent.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_InjectClipboardEvent,
                      std::string /* serialized_event */ )
 
 // Carries a keyboard event from the client to the desktop session agent.
 // |serialized_event| is a serialized protocol::KeyEvent.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_InjectKeyEvent,
                      std::string /* serialized_event */ )
 
 // Carries a mouse event from the client to the desktop session agent.
 // |serialized_event| is a serialized protocol::MouseEvent.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_InjectMouseEvent,
                      std::string /* serialized_event */ )
 
 // Changes the screen resolution in the desktop session.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_SetScreenResolution,
                      remoting::ScreenResolution /* resolution */)