Remove PostAttachCallbacks and replace with something more specialized

Source/web/WebFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 536 matching lines @@
 void WebFrameImpl::setRemoteWebLayer(WebLayer* webLayer)
 {
     if (!frame())
         return;
 
     if (frame()->remotePlatformLayer())
         GraphicsLayer::unregisterContentsLayer(frame()->remotePlatformLayer());
     if (webLayer)
         GraphicsLayer::registerContentsLayer(webLayer);
     frame()->setRemotePlatformLayer(webLayer);
-    frame()->ownerElement()->setNeedsStyleRecalc(WebCore::SubtreeStyleChange, WebCore::StyleChangeFromRenderer);
+    frame()->ownerElement()->scheduleLayerUpdate();
 }
 
 void WebFrameImpl::setPermissionClient(WebPermissionClient* permissionClient)
 {
     m_permissionClient = permissionClient;
 }
 
 void WebFrameImpl::setSharedWorkerRepositoryClient(WebSharedWorkerRepositoryClient* client)
 {
     m_sharedWorkerRepositoryClient = SharedWorkerRepositoryClientImpl::create(client);
@@ skipping 1928 matching lines @@
 
         // There is a possibility that the frame being detached was the only
         // pending one. We need to make sure final replies can be sent.
         flushCurrentScopingEffort(m_findRequestIdentifier);
 
         cancelPendingScopingEffort();
     }
 }
 
 } // namespace blink