bindings: Simplifies WindowProxyManager and its relation to Frame.

third_party/WebKit/Source/bindings/core/v8/WindowProxy.h

 /*
  * 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 36 matching lines @@
 // persist between navigations.
 class WindowProxy : public GarbageCollectedFinalized<WindowProxy> {
  public:
   virtual ~WindowProxy();
 
   DECLARE_TRACE();
 
   v8::Local<v8::Context> contextIfInitialized() const {
     return m_scriptState ? m_scriptState->context() : v8::Local<v8::Context>();
   }
+  bool isInitialized() const {
+    return m_lifecycle == Lifecycle::ContextInitialized;
+  }
   void initializeIfNeeded();
 
   void clearForClose();
   void clearForNavigation();
 
   v8::Local<v8::Object> globalIfNotDetached();
   v8::Local<v8::Object> releaseGlobal();
   void setGlobal(v8::Local<v8::Object>);
 
   // TODO(dcheng): Temporarily exposed to avoid include cycles. Remove the need
@@ skipping 38 matching lines @@
   RefPtr<ScriptState> m_scriptState;
   // TODO(dcheng): Consider making these private and using getters.
   const RefPtr<DOMWrapperWorld> m_world;
   ScopedPersistent<v8::Object> m_globalProxy;
   Lifecycle m_lifecycle;
 };
 
 }  // namespace blink
 
 #endif  // WindowProxy_h