Fix Runtime.executionContextCreated for crafted iframes.

Source/bindings/core/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. 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
@@ skipping 199 matching lines @@
     return result;
 }
 
 bool ScriptController::initializeMainWorld()
 {
     if (m_windowProxy->isContextInitialized())
         return false;
     return windowProxy(DOMWrapperWorld::mainWorld())->isContextInitialized();
 }
 
+bool ScriptController::isMainWorldInitialized()
+{
+    return m_windowProxy->isContextInitialized();
+}
+
 WindowProxy* ScriptController::existingWindowProxy(DOMWrapperWorld& world)
 {
     if (world.isMainWorld())
         return m_windowProxy->isContextInitialized() ? m_windowProxy.get() : 0;
 
     IsolatedWorldMap::iterator iter = m_isolatedWorlds.find(world.worldId());
     if (iter == m_isolatedWorlds.end())
         return 0;
     return iter->value->isContextInitialized() ? iter->value.get() : 0;
 }
@@ skipping 414 matching lines @@
         resultArray->Set(i, evaluationResult);
     }
 
     if (results) {
         for (size_t i = 0; i < resultArray->Length(); ++i)
             results->append(handleScope.Escape(resultArray->Get(i)));
     }
 }
 
 } // namespace blink