Move most of ChromeV8Context to a base ScriptContext

chrome/renderer/extensions/safe_builtins.h

-// Copyright 2013 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_SAFE_BUILTINS_H_
-#define CHROME_RENDERER_EXTENSIONS_SAFE_BUILTINS_H_
-
-#include "v8/include/v8.h"
-
-namespace extensions {
-class ChromeV8Context;
-
-// A collection of safe builtin objects, in that they won't be tained by
-// extensions overriding methods on them.
-class SafeBuiltins {
- public:
-  // Creates the v8::Extension which manages SafeBuiltins instances.
-  static v8::Extension* CreateV8Extension();
-
-  explicit SafeBuiltins(ChromeV8Context* context);
-
-  virtual ~SafeBuiltins();
-
-  // Each method returns an object with methods taken from their respective
-  // builtin object's prototype, adapted to automatically call() themselves.
-  //
-  // Examples:
-  //   Array.prototype.forEach.call(...) becomes Array.forEach(...)
-  //   Object.prototype.toString.call(...) becomes Object.toString(...)
-  //   Object.keys.call(...) becomes Object.keys(...)
-  v8::Local<v8::Object> GetArray() const;
-  v8::Local<v8::Object> GetFunction() const;
-  v8::Local<v8::Object> GetJSON() const;
-  // NOTE(kalman): VS2010 won't compile "GetObject", it mysteriously renames it
-  // to "GetObjectW" - hence GetObjekt. Sorry.
-  v8::Local<v8::Object> GetObjekt() const;
-  v8::Local<v8::Object> GetRegExp() const;
-  v8::Local<v8::Object> GetString() const;
-
- private:
-  ChromeV8Context* context_;
-};
-
-} //  namespace extensions
-
-#endif  // CHROME_RENDERER_EXTENSIONS_SAFE_BUILTINS_H_