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

chrome/browser/search/hotword_service_factory.cc

 // 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.
 
 #include "chrome/browser/search/hotword_service_factory.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_service.h"
@@ skipping 29 matching lines @@
   HotwordService* hotword_service = GetForProfile(context);
   return hotword_service && hotword_service->IsHotwordAllowed();
 }
 
 // static
 bool HotwordServiceFactory::IsHotwordHardwareAvailable() {
   // TODO(rlp, dgreid): return has_hotword_hardware()
   // Fill in once the hardware has the correct interface implemented.
   // In the meantime, this function can be used to get other parts moving
   // based on a flag.
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   return command_line->HasSwitch(switches::kEnableExperimentalHotwordHardware);
 }
 
 // static
 int HotwordServiceFactory::GetCurrentError(BrowserContext* context) {
   HotwordService* hotword_service = GetForProfile(context);
   if (!hotword_service)
     return 0;
   return hotword_service->error_message();
 }
@@ skipping 60 matching lines @@
                              user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   prefs->RegisterBooleanPref(prefs::kHotwordAlwaysOnNotificationSeen,
                              false,
                              user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 KeyedService* HotwordServiceFactory::BuildServiceInstanceFor(
     BrowserContext* context) const {
   return new HotwordService(Profile::FromBrowserContext(context));
 }