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

chrome/browser/background/background_mode_manager_mac.mm

 // Copyright (c) 2011 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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/mac/mac_util.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 69 matching lines @@
 }
 
 }  // namespace
 
 void BackgroundModeManager::EnableLaunchOnStartup(bool should_launch) {
   // LoginItems are associated with an executable, not with a specific
   // user-data-dir, so only mess with the LoginItem when running with the
   // default user-data-dir. So if a user is running multiple instances of
   // Chrome with different user-data-dirs, they won't conflict in their
   // use of LoginItems.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUserDataDir))
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUserDataDir))
     return;
 
   // There are a few cases we need to handle:
   //
   // 1) Chrome is transitioning to "launch on startup" state, and there's no
   // login item currently. We create a new item if the kUserRemovedLoginItem
   // and kChromeCreatedLoginItem flags are already false, and set the
   // kChromeCreatedLoginItem flag to true. If kChromeCreatedLoginItem is
   // already set (meaning that we created a login item that has since been
   // deleted) then we will set the kUserRemovedLoginItem so we do not create
@@ skipping 50 matching lines @@
 
 void BackgroundModeManager::DisplayAppInstalledNotification(
     const extensions::Extension* extension) {
   // TODO(atwilson): Display a platform-appropriate notification here.
   // http://crbug.com/74970
 }
 
 base::string16 BackgroundModeManager::GetPreferencesMenuLabel() {
   return l10n_util::GetStringUTF16(IDS_OPTIONS);
 }