components: Move user_prefs into user_prefs namespace.

components/autofill/browser/autofill_common_test.cc

 // 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 "components/autofill/browser/autofill_common_test.h"
 
 #include "base/guid.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 133 matching lines @@
 
 void DisableSystemServices(Profile* profile) {
   // Use a mock Keychain rather than the OS one to store credit card data.
 #if defined(OS_MACOSX)
   Encryptor::UseMockKeychain(true);
 #endif
 
   // Disable auxiliary profiles for unit testing.  These reach out to system
   // services on the Mac.
   if (profile) {
-    components::UserPrefs::Get(profile)->SetBoolean(
+    user_prefs::UserPrefs::Get(profile)->SetBoolean(
         prefs::kAutofillAuxiliaryProfilesEnabled, false);
   }
 }
 
 }  // namespace test
 }  // namespace autofill