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

chrome/browser/chromeos/login/supervised/supervised_user_login_flow.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/chromeos/login/supervised/supervised_user_login_flow.h"
 
 #include "base/base64.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 23 matching lines @@
       data_loaded_(false),
       weak_factory_(this) {
 }
 
 SupervisedUserLoginFlow::~SupervisedUserLoginFlow() {}
 
 void SupervisedUserLoginFlow::AppendAdditionalCommandLineSwitches() {
   user_manager::UserManager* user_manager = user_manager::UserManager::Get();
   if (user_manager->IsCurrentUserNew()) {
     // Supervised users should launch into empty desktop on first run.
-    CommandLine::ForCurrentProcess()->AppendSwitch(::switches::kSilentLaunch);
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        ::switches::kSilentLaunch);
   }
 }
 
 bool SupervisedUserLoginFlow::CanLockScreen() {
   return true;
 }
 
 bool SupervisedUserLoginFlow::ShouldLaunchBrowser() {
   return data_loaded_;
 }
@@ skipping 204 matching lines @@
 void SupervisedUserLoginFlow::LaunchExtraSteps(
     Profile* profile) {
   profile_ = profile;
   ChromeUserManager::Get()->GetSupervisedUserManager()->LoadSupervisedUserToken(
       profile,
       base::Bind(&SupervisedUserLoginFlow::OnSyncSetupDataLoaded,
                  weak_factory_.GetWeakPtr()));
 }
 
 }  // namespace chromeos