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

base/prefs/pref_service_builder.cc

Index: base/prefs/pref_service_builder.cc
diff --git a/base/prefs/pref_service_builder.cc b/base/prefs/pref_service_builder.cc
index 71d2d5bb3f7d8e024a2300382fc5430d3d6ba4a7..b3d3533603721f99a04d908746055f8af52fbcdd 100644
--- a/base/prefs/pref_service_builder.cc
+++ b/base/prefs/pref_service_builder.cc
@@ -74,20 +74,19 @@ PrefServiceBuilder& PrefServiceBuilder::WithAsync(bool async) {
 
 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;
 }