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

chrome/browser/google/chrome_google_url_tracker_client.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/google/chrome_google_url_tracker_client.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/google/google_url_tracker_navigation_helper_impl.h"
 #include "chrome/browser/infobars/infobar_service.h"
@@ skipping 27 matching lines @@
 }
 
 bool ChromeGoogleURLTrackerClient::IsListeningForNavigationStart() {
   return registrar_.IsRegistered(
       this,
       content::NOTIFICATION_NAV_ENTRY_PENDING,
       content::NotificationService::AllBrowserContextsAndSources());
 }
 
 bool ChromeGoogleURLTrackerClient::IsBackgroundNetworkingEnabled() {
-  return !CommandLine::ForCurrentProcess()->HasSwitch(
+  return !base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableBackgroundNetworking);
 }
 
 PrefService* ChromeGoogleURLTrackerClient::GetPrefs() {
   return profile_->GetPrefs();
 }
 
 net::URLRequestContextGetter*
 ChromeGoogleURLTrackerClient::GetRequestContext() {
   return profile_->GetRequestContext();
@@ skipping 12 matching lines @@
   // some notifications, e.g. navigations in bubbles/balloons etc.
   if (infobar_service) {
     google_url_tracker()->OnNavigationPending(
         scoped_ptr<GoogleURLTrackerNavigationHelper>(
             new GoogleURLTrackerNavigationHelperImpl(
                 controller->GetWebContents(), google_url_tracker())),
         infobar_service,
         controller->GetPendingEntry()->GetUniqueID());
   }
 }