Move extensions bindings code out of //chrome

chrome/renderer/extensions/utils_native_handler.h

-// Copyright 2014 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 CHROME_RENDERER_EXTENSIONS_UTILS_NATIVE_HANDLER_H_
-#define CHROME_RENDERER_EXTENSIONS_UTILS_NATIVE_HANDLER_H_
-
-#include "extensions/renderer/object_backed_native_handler.h"
-
-namespace extensions {
-class ChromeV8Context;
-
-class UtilsNativeHandler : public ObjectBackedNativeHandler {
- public:
-  explicit UtilsNativeHandler(ChromeV8Context* context);
-  virtual ~UtilsNativeHandler();
-
- private:
-  // |args| consists of two arguments: a public class name, and a reference
-  // to the implementation class. CreateClassWrapper returns a new class
-  // that wraps the implementation, while hiding its members.
-  void CreateClassWrapper(const v8::FunctionCallbackInfo<v8::Value>& args);
-
-  DISALLOW_COPY_AND_ASSIGN(UtilsNativeHandler);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_RENDERER_EXTENSIONS_UTILS_NATIVE_HANDLER_H_