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

chrome/browser/ui/app_list/app_list_service_mac.mm

 // 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.
 
 #import "chrome/browser/ui/app_list/app_list_service_mac.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #import <Cocoa/Cocoa.h>
 
 #include "base/bind.h"
@@ skipping 353 matching lines @@
   init_called = true;
   apps::AppShimHandler::RegisterHandler(app_mode::kAppListModeId,
                                         AppListServiceMac::GetInstance());
 
   // Handle the case where Chrome was not running and was started with the app
   // launcher shim. The profile has not yet been loaded. To improve response
   // times, start animating an empty window which will be populated via
   // OnShimLaunch(). Note that if --silent-launch is not also passed, the window
   // will instead populate via StartupBrowserCreator::Launch(). Shim-initiated
   // launches will always have --silent-launch.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList))
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList))
     ShowWindowNearDock();
 }
 
 Profile* AppListServiceMac::GetCurrentAppListProfile() {
   return profile_;
 }
 
 void AppListServiceMac::ShowForProfile(Profile* requested_profile) {
   CreateForProfile(requested_profile);
   ShowWindowNearDock();
@@ skipping 211 matching lines @@
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   content::BrowserThread::PostTask(
       content::BrowserThread::UI,
       FROM_HERE,
       base::Bind(&AppListServiceMac::WindowAnimationDidEnd,
                  base::Unretained(AppListServiceMac::GetInstance())));
 }
 
 @end