Have Frame::script() return a reference

Source/bindings/v8/DOMWrapperWorld.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 145 matching lines @@
     }
 
     world = adoptRef(new DOMWrapperWorld(worldId, extensionGroup));
     result.iterator->value = world.get();
     isolatedWorldCount++;
     ASSERT(map.size() == isolatedWorldCount);
 
     return world.release();
 }
 
-v8::Handle<v8::Context> DOMWrapperWorld::context(ScriptController* controller)
+v8::Handle<v8::Context> DOMWrapperWorld::context(ScriptController& controller)
 {
-    return controller->windowShell(this)->context();
+    return controller.windowShell(this)->context();
 }
 
 typedef HashMap<int, RefPtr<SecurityOrigin> > IsolatedWorldSecurityOriginMap;
 static IsolatedWorldSecurityOriginMap& isolatedWorldSecurityOrigins()
 {
     ASSERT(isMainThread());
     DEFINE_STATIC_LOCAL(IsolatedWorldSecurityOriginMap, map, ());
     return map;
 }
 
@@ skipping 65 matching lines @@
 }
 
 V8DOMActivityLogger* DOMWrapperWorld::activityLogger(int worldId)
 {
     DOMActivityLoggerMap& loggers = domActivityLoggers();
     DOMActivityLoggerMap::iterator it = loggers.find(worldId);
     return it == loggers.end() ? 0 : it->value.get();
 }
 
 } // namespace WebCore