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

chrome/browser/policy/cloud/user_policy_signin_service_mobile.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/policy/cloud/user_policy_signin_service_mobile.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 11 matching lines @@
 #include "components/signin/core/browser/signin_manager.h"
 #include "net/base/network_change_notifier.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "policy/proto/device_management_backend.pb.h"
 
 namespace policy {
 
 namespace {
 
 enterprise_management::DeviceRegisterRequest::Type GetRegistrationType() {
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kFakeCloudPolicyType))
     return enterprise_management::DeviceRegisterRequest::BROWSER;
 #if defined(OS_IOS)
   return enterprise_management::DeviceRegisterRequest::IOS_BROWSER;
 #elif defined(OS_ANDROID)
   return enterprise_management::DeviceRegisterRequest::ANDROID_BROWSER;
 #else
 #error "This file can be built only on OS_IOS or OS_ANDROID."
 #endif
 }
@@ skipping 170 matching lines @@
 
 void UserPolicySigninService::CancelPendingRegistration() {
   weak_factory_.InvalidateWeakPtrs();
 }
 
 void UserPolicySigninService::OnRegistrationDone() {
   registration_helper_.reset();
 }
 
 }  // namespace policy