Mouse lock implementation, including the renderer side and the Windows version of the browser side.

content/common/view_messages.h

 // Copyright (c) 2011 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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/common_param_traits.h"
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                     std::vector<FilePath> /* paths of local copy */,
                     FilePath /* local directory path */)
 
 // Sends updated information about the client firewall traversal policy.
 // |traversal_data| is a json string containing policy information.
 // Sent due to a policy change or in response to a
 // ViewHostMsg_RequestRemoteAccessClientFirewallTraversal message.
 IPC_MESSAGE_ROUTED1(ViewMsg_UpdateRemoteAccessClientFirewallTraversal,
                     std::string /* traversal_data */)
 
+// Tells the render side that a ViewHostMsg_LockMouse message has been
+// processed. |succeeded| indicates whether the mouse has been successfully
+// locked or not.
+IPC_MESSAGE_ROUTED1(ViewMsg_LockMouse_ACK,
+                    bool /* succeeded */)
+// Tells the render side that the mouse has been unlocked.
+IPC_MESSAGE_ROUTED0(ViewMsg_MouseLockLost);
+
 // These three messages are sent to the parent RenderViewHost to display the
 // page/widget that was created by
 // CreateWindow/CreateWidget/CreateFullscreenWidget. routing_id
 // refers to the id that was returned from the Create message above.
 // The initial_position parameter is a rectangle in screen coordinates.
 //
 // FUTURE: there will probably be flags here to control if the result is
 // in a new window.
 IPC_MESSAGE_ROUTED4(ViewHostMsg_ShowView,
                     int /* route_id */,
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 // other pages in the site and is saved, otherwise it only applies to this
 // tab.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateZoomLimits,
                     int /* minimum_percent */,
                     int /* maximum_percent */,
                     bool /* remember */)
 
 // Asks the browser to create a block of shared memory for the renderer to
 // fill in and pass back to the browser.
 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_AllocateSharedMemoryBuffer,
-                           uint32 /* buffer size */,
-                           base::SharedMemoryHandle /* browser handle */)
+                            uint32 /* buffer size */,
+                            base::SharedMemoryHandle /* browser handle */)
 
 // Notify the browser that this render process can or can't be suddenly
 // terminated.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_SuddenTerminationChanged,
                      bool /* enabled */)
 
 #if defined(OS_MACOSX)
 // On OSX, we cannot allocated shared memory from within the sandbox, so
 // this call exists for the renderer to ask the browser to allocate memory
 // on its behalf. We return a file descriptor to the POSIX shared memory.
@@ skipping 206 matching lines @@
                     int32 /* complete status */)
 
 // Request updated information about the client firewall traversal policy.
 // Will result in a ViewMsg_UpdateRemoteAccessClientFirewallTraversal message
 // being sent back.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_RequestRemoteAccessClientFirewallTraversal)
 
 // Notifies the browser of an event occurring in the media pipeline.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_MediaLogEvent,
                      media::MediaLogEvent /* event */)
+
+// Requests to lock the mouse. Will result in a ViewMsg_LockMouse_ACK message
+// being sent back.
+IPC_MESSAGE_ROUTED0(ViewHostMsg_LockMouse)
+
+// Requests to unlock the mouse. A ViewMsg_MouseLockLost message will be sent
+// whenever the mouse is unlocked (which may or may not be caused by
+// ViewHostMsg_UnlockMouse).
+IPC_MESSAGE_ROUTED0(ViewHostMsg_UnlockMouse)
+