Move Extension into extensions namespace

chrome/browser/extensions/external_policy_extension_loader.cc

 // 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.
 
 #include "chrome/browser/extensions/external_policy_extension_loader.h"
 
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "googleurl/src/gurl.h"
 
 namespace {
 
 // Check an extension ID and an URL to be syntactically correct.
 bool CheckExtension(const std::string& id, const std::string& update_url) {
   GURL url(update_url);
   if (!url.is_valid()) {
     LOG(WARNING) << "Policy specifies invalid update URL for external "
                  << "extension: " << update_url;
     return false;
   }
-  if (!Extension::IdIsValid(id)) {
+  if (!extensions::Extension::IdIsValid(id)) {
     LOG(WARNING) << "Policy specifies invalid ID for external "
                  << "extension: " << id;
     return false;
   }
   return true;
 }
 
 }  // namespace
 
 ExternalPolicyExtensionLoader::ExternalPolicyExtensionLoader(
@@ skipping 55 matching lines @@
         notification_registrar_.RemoveAll();
         pref_change_registrar_.RemoveAll();
         profile_ = NULL;
       }
       break;
     }
     default:
       NOTREACHED() << "Unexpected notification type.";
   }
 }