Move Singleton and related structs to namespace base

components/wifi_sync/wifi_credential_syncable_service_factory.h

 // Copyright 2014 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 COMPONENTS_WIFI_SYNC_WIFI_CREDENTIAL_SYNCABLE_SERVICE_FACTORY_H_
 #define COMPONENTS_WIFI_SYNC_WIFI_CREDENTIAL_SYNCABLE_SERVICE_FACTORY_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
@@ skipping 23 matching lines @@
   // Returns the singleton instance.
   static WifiCredentialSyncableServiceFactory* GetInstance();
 
 #if defined(OS_CHROMEOS)
   void set_ignore_login_state_for_test(bool new_value) {
     ignore_login_state_for_test_ = new_value;
   }
 #endif
 
  private:
-  friend struct DefaultSingletonTraits<WifiCredentialSyncableServiceFactory>;
+  friend struct base::DefaultSingletonTraits<
+      WifiCredentialSyncableServiceFactory>;
 
   WifiCredentialSyncableServiceFactory();
   ~WifiCredentialSyncableServiceFactory() override;
 
   // BrowserContextKeyedServiceFactory implementation.
   KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* context) const override;
 
 #if defined(OS_CHROMEOS)
   // Returns a scoped pointer to a WifiConfigDelegate, which can be
@@ skipping 10 matching lines @@
   // LoginState at the time SyncableServices are constructed.
   bool ignore_login_state_for_test_ = false;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(WifiCredentialSyncableServiceFactory);
 };
 
 }  // namespace wifi_sync
 
 #endif  // COMPONENTS_WIFI_SYNC_WIFI_CREDENTIAL_SYNCABLE_SERVICE_FACTORY_H_