Remove the flags to RenderViewHost::EnablePreferredSizeMode since it's not used after http://crbu...

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/content_export.h"
@@ skipping 1038 matching lines @@
 IPC_MESSAGE_ROUTED0(ViewMsg_MoveOrResizeStarted)
 
 // Reply to ViewHostMsg_RequestMove, ViewHostMsg_ShowView, and
 // ViewHostMsg_ShowWidget to inform the renderer that the browser has
 // processed the move.  The browser may have ignored the move, but it finished
 // processing.  This is used because the renderer keeps a temporary cache of
 // the widget position while these asynchronous operations are in progress.
 IPC_MESSAGE_ROUTED0(ViewMsg_Move_ACK)
 
 // Used to instruct the RenderView to send back updates to the preferred size.
-IPC_MESSAGE_ROUTED1(ViewMsg_EnablePreferredSizeChangedMode,
-                    int /*flags*/)
+IPC_MESSAGE_ROUTED0(ViewMsg_EnablePreferredSizeChangedMode)
 
 // Changes the text direction of the currently selected input field (if any).
 IPC_MESSAGE_ROUTED1(ViewMsg_SetTextDirection,
                     WebKit::WebTextDirection /* direction */)
 
 // Tells the renderer to clear the focused node (if any).
 IPC_MESSAGE_ROUTED0(ViewMsg_ClearFocusedNode)
 
 // Make the RenderView transparent and render it onto a custom background. The
 // background will be tiled in both directions if it is not large enough.
@@ skipping 872 matching lines @@
                      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)