BrowserPlugin/WebView - Move plugin lifetime to DOM

Source/core/html/HTMLPlugInElement.h

Index: Source/core/html/HTMLPlugInElement.h
diff --git a/Source/core/html/HTMLPlugInElement.h b/Source/core/html/HTMLPlugInElement.h
index 0647dfd3d2422d80829c2582f571d44aef7139ff..6a45ace05f05a78b7e72d18fefb93bee3db643eb 100644
--- a/Source/core/html/HTMLPlugInElement.h
+++ b/Source/core/html/HTMLPlugInElement.h
@@ -68,6 +68,12 @@ public:
 
     virtual void removeAllEventListeners() OVERRIDE FINAL;
 
+    void createPluginWithoutRenderer(const String& mimeType);
+    // Allows persisted plugins to be registered by their creator. Call this
+    // function with an argument of 0 to clear the persisted plugin.
+    void setPlugin(PassRefPtr<Widget>);
+    PassRefPtr<Widget> plugin();

[eseidel, 2013/10/28 16:59:29]

Unless this is passing ownership, I doubt you want PassRefPtr?  I assume this is
just a getter, and you can use Widget* ?

+
 protected:
     HTMLPlugInElement(const QualifiedName& tagName, Document&);
 
@@ -101,6 +107,10 @@ private:
     bool m_isCapturingMouseEvents;
     bool m_inBeforeLoadEventHandler;
     DisplayState m_displayState;
+
+    // Keep track of any plugins that wish to be persisted.
+    RefPtr<Widget> m_plugin;
+    String m_pluginMimeType;
 };
 
 inline HTMLPlugInElement* toHTMLPlugInElement(Node* node)