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

chrome/browser/prefs/pref_service_syncable_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 "chrome/browser/prefs/pref_service_syncable_builder.h"
 
 #include "base/debug/trace_event.h"
 #include "base/prefs/default_pref_store.h"
 #include "base/prefs/pref_notifier_impl.h"
 #include "base/prefs/pref_value_store.h"
@@ skipping 30 matching lines @@
   WithCommandLinePrefs(new CommandLinePrefStore(command_line));
   return *this;
 }
 
 PrefServiceSyncable* PrefServiceSyncableBuilder::CreateSyncable(
     user_prefs::PrefRegistrySyncable* pref_registry) {
   TRACE_EVENT0("browser", "PrefServiceSyncableBuilder::CreateSyncable");
   PrefNotifierImpl* pref_notifier = new PrefNotifierImpl();
   PrefServiceSyncable* pref_service = new PrefServiceSyncable(
       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),
+      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;
 }