Move CommandLine to base namespace.

chrome/browser/prefs/pref_service_syncable_factory.h

 // Copyright 2013 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_PREFS_PREF_SERVICE_SYNCABLE_FACTORY_H_
 #define CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_FACTORY_H_
 
 #include "base/prefs/pref_service_factory.h"
 
+class PrefServiceSyncable;
+
+namespace base {
 class CommandLine;
-class PrefServiceSyncable;
+}
 
 namespace policy {
 class PolicyService;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // A PrefServiceFactory that also knows how to build a
 // PrefServiceSyncable, and may know about Chrome concepts such as
 // PolicyService.
 class PrefServiceSyncableFactory : public base::PrefServiceFactory {
  public:
   PrefServiceSyncableFactory();
   virtual ~PrefServiceSyncableFactory();
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
   // Set up policy pref stores using the given policy service.
   void SetManagedPolicies(policy::PolicyService* service);
   void SetRecommendedPolicies(policy::PolicyService* service);
 #endif
 
   // Specifies to use an actual command-line backed command-line pref store.
-  void SetCommandLine(CommandLine* command_line);
+  void SetCommandLine(base::CommandLine* command_line);
 
   scoped_ptr<PrefServiceSyncable> CreateSyncable(
       user_prefs::PrefRegistrySyncable* registry);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrefServiceSyncableFactory);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_FACTORY_H_