BrowserPlugin/WebView - Move plugin lifetime to DOM

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 879 matching lines @@
     if (m_element->renderer()->document().renderer()) {
         // Take our element and get the clip rect from the enclosing layer and
         // frame view.
         clipRect.intersect(
             m_element->document().view()->windowClipRectForFrameOwner(m_element, true));
     }
 
     return clipRect;
 }
 
+bool WebPluginContainerImpl::pluginShouldPersist() const
+{
+    return m_webPlugin->shouldPersist();
+}
+
 } // namespace blink