Get rid of scheduleSVGFilterLayerUpdateHack call for plugins.

Source/web/WebPluginContainerImpl.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 272 matching lines @@
     return frame->pageZoomFactor();
 }
 
 void WebPluginContainerImpl::setWebLayer(WebLayer* layer)
 {
     if (m_webLayer == layer)
         return;
 
     // If anyone of the layers is null we need to switch between hardware
     // and software compositing.
-    if (!m_webLayer || !layer)
-        m_element->scheduleSVGFilterLayerUpdateHack();
+    if (!m_webLayer || !layer) {
+        m_element->setNeedsCompositingUpdate();
+        m_element->setNeedsStyleRecalc(LocalStyleChange);

[esprehn, 2014/06/10 02:19:09]

Can you add a comment why you need to trigger this recalc style?

+    }
     if (m_webLayer)
         GraphicsLayer::unregisterContentsLayer(m_webLayer);
     if (layer)
         GraphicsLayer::registerContentsLayer(layer);
     m_webLayer = layer;
 }
 
 bool WebPluginContainerImpl::supportsPaginatedPrint() const
 {
     return m_webPlugin->supportsPaginatedPrint();
@@ skipping 590 matching lines @@
 
     return clipRect;
 }
 
 bool WebPluginContainerImpl::pluginShouldPersist() const
 {
     return m_webPlugin->shouldPersist();
 }
 
 } // namespace blink