Use upstream V8Proxy and V8Utilities

webkit/port/bindings/v8/v8_utility.h

-// Copyright (c) 2006-2008 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 V8_UTILITY_H__
-#define V8_UTILITY_H__
-
-#include "V8Utilities.h"
-
-// To break a cycle dependency during upstreaming this block of code,
-// ifdefing it out based on this #define.
-//
-// TODO(ajwong): After https://bugs.webkit.org/show_bug.cgi?id=25595
-// lands and is rolled down into chromium, migrate all headaers to use
-// the code in V8Utilities.h directly, and then, remove this code.
-#ifndef V8UTILITIES_DEFINED
-namespace WebCore {
-
-class AllowAllocation {
- public:
-  inline AllowAllocation() {
-    m_prev = m_current;
-    m_current = true;
-  }
-  inline ~AllowAllocation() {
-    m_current = m_prev;
-  }
-  static bool m_current;
- private:
-  bool m_prev;
-};
-
-class SafeAllocation {
- public:
-  static inline v8::Local<v8::Object> NewInstance(
-      v8::Handle<v8::Function> fun);
-  static inline v8::Local<v8::Object> NewInstance(
-      v8::Handle<v8::ObjectTemplate> templ);
-  static inline v8::Local<v8::Object> NewInstance(
-      v8::Handle<v8::Function> fun, int argc, v8::Handle<v8::Value> argv[]);
-};
-
-v8::Local<v8::Object> SafeAllocation::NewInstance(
-    v8::Handle<v8::Function> fun) {
-  if (fun.IsEmpty())
-    return v8::Local<v8::Object>();
-  AllowAllocation allow;
-  return fun->NewInstance();
-}
-
-v8::Local<v8::Object> SafeAllocation::NewInstance(
-    v8::Handle<v8::ObjectTemplate> templ) {
-  if (templ.IsEmpty()) return v8::Local<v8::Object>();
-  AllowAllocation allow;
-  return templ->NewInstance();
-}
-
-v8::Local<v8::Object> SafeAllocation::NewInstance(
-    v8::Handle<v8::Function> fun, int argc, v8::Handle<v8::Value> argv[]) {
-  if (fun.IsEmpty()) return v8::Local<v8::Object>();
-  AllowAllocation allow;
-  return fun->NewInstance(argc, argv);
-}
-
-}  // namespace WebCore
-#endif  // V8UTILITIES_DEFINED
-
-#endif   // V8_UTILITY_H__