Implement a module system for the extension bindings JS.

chrome/renderer/extensions/page_actions_custom_bindings.h

 // Copyright (c) 2012 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_PAGE_ACTIONS_CUSTOM_BINDINGS_H_
 #define CHROME_RENDERER_EXTENSIONS_PAGE_ACTIONS_CUSTOM_BINDINGS_H_
 #pragma once
 
 #include "chrome/renderer/extensions/chrome_v8_extension.h"
 
 class ExtensionDispatcher;
 
 namespace extensions {
 
 // Implements custom bindings for the pageActions API.
 class PageActionsCustomBindings : public ChromeV8Extension {
  public:
-  PageActionsCustomBindings(
-      int dependency_count,
-      const char** dependencies,
-      ExtensionDispatcher* extension_dispatcher);
-
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name) OVERRIDE;
+  explicit PageActionsCustomBindings(ExtensionDispatcher* extension_dispatcher);
 
  private:
   static v8::Handle<v8::Value> GetCurrentPageActions(const v8::Arguments& args);
 };
 
 }  // extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_PAGE_ACTIONS_CUSTOM_BINDINGS_H_