Revert "Oilpan: fix build after r196583."

Source/bindings/core/v8/inspector/V8JavaScriptCallFrame.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8JavaScriptCallFrame_h
 #define V8JavaScriptCallFrame_h
 
-#include "wtf/Forward.h"
-#include <v8.h>
+#include "core/inspector/JavaScriptCallFrame.h"
 
 namespace blink {
 
-class JavaScriptCallFrame;
-
 class V8JavaScriptCallFrame {
 public:
     static v8::Local<v8::FunctionTemplate> createWrapperTemplate(v8::Isolate*);
     static v8::Local<v8::Object> wrap(v8::Local<v8::FunctionTemplate> constructorTemplate, v8::Local<v8::Context>, PassRefPtr<JavaScriptCallFrame>);
     static JavaScriptCallFrame* unwrap(v8::Local<v8::Object>);
+
+private:
+    static v8::Local<v8::String> hiddenPropertyName(v8::Isolate*);
 };
 
 } // namespace blink
 
 #endif // V8JavaScriptCallFrame_h