Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

base/prefs/pref_service_builder.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 "base/prefs/pref_service_builder.h"
 
 #include "base/bind.h"
 #include "base/prefs/default_pref_store.h"
 #include "base/prefs/json_pref_store.h"
 #include "base/prefs/pref_notifier_impl.h"
@@ skipping 56 matching lines @@
   return *this;
 }
 
 PrefServiceBuilder& PrefServiceBuilder::WithAsync(bool async) {
   async_ = async;
   return *this;
 }
 
 PrefService* PrefServiceBuilder::Create(PrefRegistry* pref_registry) {
   PrefNotifierImpl* pref_notifier = new PrefNotifierImpl();
-  PrefService* pref_service = new PrefService(
-      pref_notifier,
-      new PrefValueStore(
-          managed_prefs_.get(),
-          extension_prefs_.get(),
-          command_line_prefs_.get(),
-          user_prefs_.get(),
-          recommended_prefs_.get(),
-          pref_registry->defaults(),
-          pref_notifier),
-      user_prefs_.get(),
-      pref_registry,
-      read_error_callback_,
-      async_);
+  PrefService* pref_service =
+      new PrefService(pref_notifier,
+                      new PrefValueStore(managed_prefs_.get(),
+                                         extension_prefs_.get(),
+                                         command_line_prefs_.get(),
+                                         user_prefs_.get(),
+                                         recommended_prefs_.get(),
+                                         pref_registry->defaults().get(),
+                                         pref_notifier),
+                      user_prefs_.get(),
+                      pref_registry,
+                      read_error_callback_,
+                      async_);
   ResetDefaultState();
   return pref_service;
 }
 
 void PrefServiceBuilder::ResetDefaultState() {
   managed_prefs_ = NULL;
   extension_prefs_ = NULL;
   command_line_prefs_ = NULL;
   user_prefs_ = NULL;
   recommended_prefs_ = NULL;
   read_error_callback_ = base::Bind(&DoNothingHandleReadError);
   async_ = false;
 }