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

chrome/browser/bookmarks/bookmark_model_factory.cc

 // Copyright (c) 2012 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/bookmarks/bookmark_model_factory.h"
 
 #include "base/command_line.h"
 #include "base/deferred_sequenced_task_runner.h"
 #include "base/memory/singleton.h"
 #include "base/prefs/pref_service.h"
@@ skipping 52 matching lines @@
   bookmark_model->Load(profile->GetPrefs(),
                        profile->GetPrefs()->GetString(prefs::kAcceptLanguages),
                        profile->GetPath(),
                        StartupTaskRunnerServiceFactory::GetForProfile(profile)
                            ->GetBookmarkTaskRunner(),
                        content::BrowserThread::GetMessageLoopProxyForThread(
                            content::BrowserThread::UI));
   bool register_bookmark_undo_service_as_observer = true;
 #if !defined(OS_IOS) && !defined(OS_ANDROID)
   register_bookmark_undo_service_as_observer =
-      CommandLine::ForCurrentProcess()->HasSwitch(
+      base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableBookmarkUndo);
 #endif  // !defined(OS_IOS)
   if (register_bookmark_undo_service_as_observer) {
     bookmark_model->AddObserver(
         BookmarkUndoServiceFactory::GetForProfile(profile));
   }
   return bookmark_model;
 }
 
 void BookmarkModelFactory::RegisterProfilePrefs(
@@ skipping 11 matching lines @@
 }
 
 content::BrowserContext* BookmarkModelFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 bool BookmarkModelFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }