binding: Removes createClosure().

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

Index: third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h b/third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h
index 21592756b5cc08b377a9ee70f2d71cd81ee775d5..2c306319bf78ff593ba3ba2e6b0a10b73a4576e6 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h
@@ -53,15 +53,19 @@ namespace blink {
 class CORE_EXPORT ScriptFunction : public GarbageCollectedFinalized<ScriptFunction> {
 public:
     virtual ~ScriptFunction() { }
-    ScriptState* getScriptState() const { return m_scriptState.get(); }
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
 protected:
     explicit ScriptFunction(ScriptState* scriptState)
         : m_scriptState(scriptState)
+#if ENABLE(ASSERT)
+        , m_bindToV8FunctionAlreadyCalled(false)
+#endif
     {
     }
 
+    ScriptState* getScriptState() const { return m_scriptState.get(); }
+
     v8::Local<v8::Function> bindToV8Function();
 
 private:
@@ -69,6 +73,10 @@ private:
     static void callCallback(const v8::FunctionCallbackInfo<v8::Value>&);
 
     RefPtr<ScriptState> m_scriptState;
+#if ENABLE(ASSERT)
+    // bindToV8Function must not be called twice.
+    bool m_bindToV8FunctionAlreadyCalled;
+#endif
 };
 
 } // namespace blink