Change panels to be able to turn off autoresize.

content/common/view_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.
 
 // 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 1034 matching lines @@
 
 // Used to instruct the RenderView to send back updates to the preferred size.
 IPC_MESSAGE_ROUTED0(ViewMsg_EnablePreferredSizeChangedMode)
 
 // Used to instruct the RenderView to automatically resize and send back
 // updates for the new size.
 IPC_MESSAGE_ROUTED2(ViewMsg_EnableAutoResize,
                     gfx::Size /* min_size */,
                     gfx::Size /* max_size */)
 
+// Used to instruct the RenderView to disalbe automatically resize.
+IPC_MESSAGE_ROUTED1(ViewMsg_DisableAutoResize,
+                    gfx::Size /* new_size */)
+
 // 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.
 IPC_MESSAGE_ROUTED1(ViewMsg_SetBackground,
@@ skipping 879 matching lines @@
 // have a javascript send a native value (string, number, boolean) to the
 // listener in Cpp. (DomAutomationController)
 IPC_MESSAGE_ROUTED2(ViewHostMsg_DomOperationResponse,
                     std::string  /* json_string */,
                     int  /* automation_id */)
 
 // Enable or disable inverting of web content pixels, for users who prefer
 // white-on-black.
 IPC_MESSAGE_ROUTED1(ViewMsg_InvertWebContent,
                     bool /* invert */)