components: Move user_prefs into user_prefs namespace.

components/browser_context_keyed_service/browser_context_keyed_base_factory.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 "components/browser_context_keyed_service/browser_context_keyed_base_factory.h"
 
 #include "base/prefs/pref_service.h"
 #include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
 #include "components/user_prefs/pref_registry_syncable.h"
 #include "components/user_prefs/user_prefs.h"
@@ skipping 55 matching lines @@
   //
   // Now that services are responsible for declaring their preferences, we have
   // to enforce a uniquenes check here because some tests create one context and
   // multiple services of the same type attached to that context (serially, not
   // parallel) and we don't want to register multiple times on the same context.
   DCHECK(!context->IsOffTheRecord());
 
   std::set<content::BrowserContext*>::iterator it =
       registered_preferences_.find(context);
   if (it == registered_preferences_.end()) {
-    PrefService* prefs = components::UserPrefs::Get(context);
+    PrefService* prefs = user_prefs::UserPrefs::Get(context);
     user_prefs::PrefRegistrySyncable* registry =
         static_cast<user_prefs::PrefRegistrySyncable*>(
             prefs->DeprecatedGetPrefRegistry());
     RegisterUserPrefs(registry);
     registered_preferences_.insert(context);
   }
 }
 
 bool
 BrowserContextKeyedBaseFactory::ServiceIsCreatedWithBrowserContext() const {
@@ skipping 17 matching lines @@
     content::BrowserContext* context) const {
   return registered_preferences_.find(context) !=
       registered_preferences_.end();
 }
 
 void BrowserContextKeyedBaseFactory::MarkPreferencesSetOn(
     content::BrowserContext* context) {
   DCHECK(!ArePreferencesSetOn(context));
   registered_preferences_.insert(context);
 }