Revert 251207 "Use gpu::Mailbox instead of std:string in IPCs"

trunk/src/content/browser/browser_plugin/browser_plugin_guest_manager.cc

 // Copyright (c) 2013 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.
 
 #include "content/browser/browser_plugin/browser_plugin_guest_manager.h"
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/browser_plugin/browser_plugin_host_factory.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
@@ skipping 203 matching lines @@
   return NULL;
 }
 
 // We only get here during teardown if we have one last buffer pending,
 // otherwise the ACK is handled by the guest.
 void BrowserPluginGuestManager::OnUnhandledSwapBuffersACK(
     int instance_id,
     const FrameHostMsg_BuffersSwappedACK_Params& params) {
   BrowserPluginGuest::AcknowledgeBufferPresent(params.gpu_route_id,
                                                params.gpu_host_id,
-                                               params.mailbox,
+                                               params.mailbox_name,
                                                params.sync_point);
 }
 
 bool BrowserPluginGuestManager::ForEachGuest(
     WebContentsImpl* embedder_web_contents, const GuestCallback& callback) {
   for (GuestInstanceMap::iterator it =
            guest_web_contents_by_instance_id_.begin();
        it != guest_web_contents_by_instance_id_.end(); ++it) {
     BrowserPluginGuest* guest = it->second->GetBrowserPluginGuest();
     if (embedder_web_contents != guest->embedder_web_contents())
       continue;
 
     if (callback.Run(guest))
       return true;
   }
   return false;
 }
 
 }  // namespace content