Revert of Limit the usage of SharedPersistent to ScriptValue only

Source/bindings/v8/ScriptController.h

 /*
  * Copyright (C) 2008, 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ScriptController_h
 #define ScriptController_h
 
 #include "bindings/v8/ScriptValue.h"
+#include "bindings/v8/SharedPersistent.h"
+
 #include "core/fetch/CrossOriginAccessControl.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 #include "wtf/text/TextPosition.h"
 #include <v8.h>
 
 struct NPObject;
 
@@ skipping 56 matching lines @@
     static v8::Local<v8::Value> callFunction(ExecutionContext*, v8::Handle<v8::Function>, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> info[], v8::Isolate*);
 
     // Returns true if the current world is isolated, and has its own Content
     // Security Policy. In this case, the policy of the main world should be
     // ignored when evaluating resources injected into the DOM.
     bool shouldBypassMainWorldContentSecurityPolicy();
 
     // Creates a property of the global object of a frame.
     void bindToWindowObject(Frame*, const String& key, NPObject*);
 
-    ScriptValue createPluginWrapper(Widget*);
+    PassRefPtr<SharedPersistent<v8::Object> > createPluginWrapper(Widget*);
 
     void enableEval();
     void disableEval(const String& errorMessage);
 
     static bool canAccessFromCurrentOrigin(Frame*);
 
     static void setCaptureCallStackForUncaughtExceptions(bool);
     void collectIsolatedContexts(Vector<std::pair<ScriptState*, SecurityOrigin*> >&);
 
     bool canExecuteScripts(ReasonForCallingCanExecuteScripts);
@@ skipping 53 matching lines @@
     // invalidate all sub-objects which are associated with that plugin.
     // The frame keeps a NPObject reference for each item on the list.
     PluginObjectMap m_pluginObjects;
 
     NPObject* m_windowScriptNPObject;
 };
 
 } // namespace WebCore
 
 #endif // ScriptController_h