Send live resize messages to renderer

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"
@@ skipping 1107 matching lines @@
 #if defined(OS_MACOSX)
 // Let the RenderView know its window has changed visibility.
 IPC_MESSAGE_ROUTED1(ViewMsg_SetWindowVisibility,
                     bool /* visibile */)
 
 // Let the RenderView know its window's frame has changed.
 IPC_MESSAGE_ROUTED2(ViewMsg_WindowFrameChanged,
                     gfx::Rect /* window frame */,
                     gfx::Rect /* content view frame */)
 
+// Message sent from the browser to the renderer when the user starts or stops
+// resizing the view.
+IPC_MESSAGE_ROUTED1(ViewMsg_SetInLiveResize,
+                    bool /* enable */)
+
 // Tell the renderer that plugin IME has completed.
 IPC_MESSAGE_ROUTED2(ViewMsg_PluginImeCompositionCompleted,
                     string16 /* text */,
                     int /* plugin_id */)
 #endif
 
 // Response message to ViewHostMsg_CreateShared/DedicatedWorker.
 // Sent when the worker has started.
 IPC_MESSAGE_ROUTED0(ViewMsg_WorkerCreated)
 
@@ skipping 38 matching lines @@
 
 // Install the first missing pluign.
 IPC_MESSAGE_ROUTED0(ViewMsg_InstallMissingPlugin)
 
 // Sent to the renderer when a popup window should no longer count against
 // the current popup count (either because it's not a popup or because it was
 // a generated by a user action or because a constrained popup got turned
 // into a full window).
 IPC_MESSAGE_ROUTED0(ViewMsg_DisassociateFromPopupCount)
 
-
 // Messages sent from the renderer to the browser.
 
 // Sent by the renderer when it is creating a new window.  The browser creates
 // a tab for it and responds with a ViewMsg_CreatingNew_ACK.  If route_id is
 // MSG_ROUTING_NONE, the view couldn't be created.
 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_CreateWindow,
                             ViewHostMsg_CreateWindow_Params,
                             int /* route_id */,
                             int64 /* cloned_session_storage_namespace_id */)
 
@@ skipping 757 matching lines @@
 
 // Stores new inspector setting in the profile.
 // TODO(jam): this should be in the chrome module
 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
                     std::string,  /* key */
                     std::string /* value */)
 
 // Send back a string to be recorded by UserMetrics.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_UserMetricsRecordAction,
                      std::string /* action */)