BrowserPlugin/WebView - Move plugin lifetime to DOM

public/web/WebPlugin.h

 /*
  * Copyright (C) 2009, 2012 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 46 matching lines @@
 struct WebTextInputInfo;
 struct WebURLError;
 template <typename T> class WebVector;
 
 class WebPlugin {
 public:
     virtual bool initialize(WebPluginContainer*) = 0;
     virtual void destroy() = 0;
 
     virtual WebPluginContainer* container() const { return 0; }
+    virtual void containerDidDetachFromParent() { }
 
     virtual NPObject* scriptableObject() = 0;
     virtual struct _NPP* pluginNPP() { return 0; }
 
     // Returns true if the form submission value is successfully obtained
     // from the plugin. The value would be associated with the name attribute
     // of the corresponding object element.
     virtual bool getFormValue(WebString&) { return false; }
     virtual bool supportsKeyboardFocus() const { return false; }
     virtual bool supportsEditCommands() const { return false; }
@@ skipping 84 matching lines @@
     enum RotationType {
         RotationType90Clockwise,
         RotationType90Counterclockwise
     };
     // Whether the plugin can rotate the view of its content.
     virtual bool canRotateView() { return false; }
     // Rotates the plugin's view of its content.
     virtual void rotateView(RotationType type) { }
 
     virtual bool isPlaceholder() { return true; }
+    virtual bool shouldPersist() const { return false; }
 
 protected:
     ~WebPlugin() { }
 };
 
 } // namespace blink
 
 #endif