Make callers of CommandLine use it via the base:: namespace.

chrome/browser/supervised_user/supervised_user_registration_utility.cc

 // 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.
 
 #include "chrome/browser/supervised_user/supervised_user_registration_utility.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 345 matching lines @@
     CompleteRegistration(true, error);
     return;
   }
 
   DCHECK(!token.empty());
   pending_supervised_user_token_ = token;
   CompleteRegistrationIfReady();
 }
 
 void SupervisedUserRegistrationUtilityImpl::CompleteRegistrationIfReady() {
-  bool skip_check = CommandLine::ForCurrentProcess()->HasSwitch(
+  bool skip_check = base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kNoSupervisedUserAcknowledgmentCheck);
 
   if (!pending_supervised_user_acknowledged_ && !skip_check)
     return;
   if (password_update_ && !skip_check)
     return;
   if (pending_supervised_user_token_.empty())
     return;
 
   GoogleServiceAuthError error(GoogleServiceAuthError::NONE);
@@ skipping 31 matching lines @@
           pending_supervised_user_id_);
     }
   }
 
   if (run_callback)
     callback_.Run(error, pending_supervised_user_token_);
   callback_.Reset();
 }
 
 } // namespace