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

chrome/browser/prefs/incognito_mode_prefs.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/prefs/incognito_mode_prefs.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 54 matching lines @@
 void IncognitoModePrefs::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterIntegerPref(
       prefs::kIncognitoModeAvailability,
       IncognitoModePrefs::ENABLED,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 // static
 bool IncognitoModePrefs::ShouldLaunchIncognito(
-    const CommandLine& command_line,
+    const base::CommandLine& command_line,
     const PrefService* prefs) {
   Availability incognito_avail = GetAvailability(prefs);
   return incognito_avail != IncognitoModePrefs::DISABLED &&
          (command_line.HasSwitch(switches::kIncognito) ||
           incognito_avail == IncognitoModePrefs::FORCED);
 }
 
 // static
 bool IncognitoModePrefs::CanOpenBrowser(Profile* profile) {
   if (profile->IsGuestSession())
@@ skipping 37 matching lines @@
 bool IncognitoModePrefs::ArePlatformParentalControlsEnabledCached() {
 #if defined(OS_WIN)
   return g_parental_control_on;
 #elif defined(OS_ANDROID)
   return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
 #else
   return false;
 #endif
 }