Enable extension APIs for content scripts.

chrome/renderer/extensions/extension_process_bindings.h

-// Copyright (c) 2011 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.
-
-// Exposes extension APIs into the extension process.
-
-#ifndef CHROME_RENDERER_EXTENSIONS_EXTENSION_PROCESS_BINDINGS_H_
-#define CHROME_RENDERER_EXTENSIONS_EXTENSION_PROCESS_BINDINGS_H_
-#pragma once
-
-#include <string>
-
-class ExtensionDispatcher;
-class ChromeV8ContextSet;
-
-namespace v8 {
-class Extension;
-}
-
-class ExtensionProcessBindings {
- public:
-  static v8::Extension* Get(ExtensionDispatcher* extension_dispatcher);
-
-  // Handles a response to an API request.  Sets |extension_id|.
-  static void HandleResponse(const ChromeV8ContextSet& contexts,
-                             int request_id,
-                             bool success,
-                             const std::string& response,
-                             const std::string& error,
-                             std::string* extension_id);
-
-  static bool HasPendingRequests(const std::string& extension_id);
-};
-
-#endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_PROCESS_BINDINGS_H_