ScriptPromise implementation for V8 Promises

Source/bindings/v8/ScriptPromise.h

 /*
  * Copyright (C) 2013 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 81 matching lines @@
     {
         m_promise.clear();
     }
 
     // Constructs and returns a ScriptPromise from |value|.
     // if |value| is not a Promise object, returns a Promise object
     // resolved with |value|.
     static ScriptPromise cast(const ScriptValue& /*value*/);
 
 private:
-    friend class ScriptPromiseResolver;
-
-    static ScriptPromise createPending();
-    static ScriptPromise createPending(ExecutionContext*);
-    static ScriptPromise createPending(v8::Isolate*) { return createPending(); }
-
     ScriptValue m_promise;
 };
 
 } // namespace WebCore
 
 
 #endif // ScriptPromise_h