Move Extension into extensions namespace

chrome/browser/intents/web_intents_registry.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_BROWSER_INTENTS_WEB_INTENTS_REGISTRY_H_
 #define CHROME_BROWSER_INTENTS_WEB_INTENTS_REGISTRY_H_
 #pragma once
 
 #include "base/callback_forward.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/browser/webdata/web_data_service.h"
 #include "webkit/glue/web_intent_service_data.h"
 
 struct DefaultWebIntentService;
 
+namespace extensions {
+class Extension;
+}
+
 // Handles storing and retrieving of web intents services in the web database.
 // The registry provides filtering logic to retrieve specific types of services.
 class WebIntentsRegistry
     : public WebDataServiceConsumer,
       public ProfileKeyedService {
  public:
   typedef std::vector<webkit_glue::WebIntentServiceData> IntentServiceList;
 
   // Callback used by WebIntentsRegistry to return results of data fetch.
   typedef base::Callback<void(const IntentServiceList&)>
@@ skipping 71 matching lines @@
   WebIntentsRegistry();
   virtual ~WebIntentsRegistry();
 
   // Collapses a list of IntentServices by joining intents that have identical
   // service URLs, actions, and mime types.
   // |services| is the list of intent services to be collapsed when passed in
   // and will be modified with the new list in-place.
   void CollapseIntents(IntentServiceList* services);
 
  private:
-   const Extension* ExtensionForURL(const std::string& url);
+   const extensions::Extension* ExtensionForURL(const std::string& url);
 
    struct IntentsQuery;
 
   // Maps web data requests to intents queries.
   // Allows OnWebDataServiceRequestDone to forward to appropriate consumer.
   typedef base::hash_map<WebDataService::Handle, IntentsQuery*> QueryMap;
 
   // WebDataServiceConsumer implementation.
   virtual void OnWebDataServiceRequestDone(
       WebDataService::Handle h,
@@ skipping 18 matching lines @@
   // Shutdown/cleanup is handled by ProfileImpl. We are  guaranteed that any
   // ProfileKeyedService will be shut down before data on ProfileImpl is
   // destroyed (i.e. |extension_service_|), so |extension_service_| is valid
   // for the lifetime of the WebIntentsRegistry object.
   ExtensionServiceInterface* extension_service_;
 
   DISALLOW_COPY_AND_ASSIGN(WebIntentsRegistry);
 };
 
 #endif  // CHROME_BROWSER_INTENTS_WEB_INTENTS_REGISTRY_H_