Make the chrome.webstore bindings load lazily.

chrome/renderer/extensions/extension_dispatcher.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_EXTENSION_DISPATCHER_H_
 #define CHROME_RENDERER_EXTENSIONS_EXTENSION_DISPATCHER_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 86 matching lines @@
   }
   bool IsAdblockPlusWithWebRequestInstalled() const {
     return webrequest_adblock_plus_;
   }
   bool IsOtherExtensionWithWebRequestInstalled() const {
     return webrequest_other_;
   }
 
  private:
   friend class RenderViewTest;
+  typedef void (*BindingInstaller)(ModuleSystem* module_system,
+                                  v8::Handle<v8::Object> chrome,
+                                  v8::Handle<v8::Object> chrome_hidden);
 
   // RenderProcessObserver implementation:
   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void WebKitInitialized() OVERRIDE;
   virtual void IdleNotification() OVERRIDE;
 
   void OnMessageInvoke(const std::string& extension_id,
                        const std::string& function_name,
                        const base::ListValue& args,
                        const GURL& event_url,
@@ skipping 85 matching lines @@
 
   ResourceBundleSourceMap source_map_;
 
   // Cache for the v8 representation of extension API schemas.
   extensions::V8SchemaRegistry v8_schema_registry_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionDispatcher);
 };
 
 #endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_DISPATCHER_H_