Fixing resize for HW accelerated compositing.

content/common/browser_plugin_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.
 
 // Multiply-included message header, no traditional include guard.
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/process.h"
@@ skipping 91 matching lines @@
   // progress. If auto-resize is enabled, this should update the corresponding
   // view size.
   IPC_STRUCT_MEMBER(gfx::Size, view_size)
 
   // All the above coordinates are in DIP. This is the scale factor needed
   // to convert them to pixels.
   IPC_STRUCT_MEMBER(float, scale_factor)
 
   // Is this UpdateRect an ACK to a resize request?
   IPC_STRUCT_MEMBER(bool, is_resize_ack)
+
+  // Used in HW accelerated case to switch between sending an UpdateRect_ACK
+  // with the new size or just resizing.
+  IPC_STRUCT_MEMBER(bool, needs_ack)
 IPC_STRUCT_END()
 
 // Browser plugin messages
 
 // -----------------------------------------------------------------------------
 // These messages are from the embedder to the browser process.
 
 // This message is sent to the browser process to enable or disable autosize
 // mode.
 IPC_MESSAGE_ROUTED3(
@@ skipping 200 matching lines @@
 // Guest renders into an FBO with textures provided by the embedder.
 // When HW accelerated buffers are swapped in the guest, the message
 // is forwarded to the embedder to notify it of a new texture
 // available for compositing.
 IPC_MESSAGE_ROUTED5(BrowserPluginMsg_BuffersSwapped,
                     int /* instance_id */,
                     gfx::Size /* size */,
                     std::string /* mailbox_name */,
                     int /* route_id */,
                     int /* gpu_host_id */)