Add support for a managed user pref store to PrefService.

base/prefs/testing_pref_service.cc

Index: base/prefs/testing_pref_service.cc
diff --git a/base/prefs/testing_pref_service.cc b/base/prefs/testing_pref_service.cc
index b96268a1ce6ccc6ac273fa85e258f6403a9231fb..5899376ad1852e7799d84d212207d0921e6175dd 100644
--- a/base/prefs/testing_pref_service.cc
+++ b/base/prefs/testing_pref_service.cc
@@ -24,6 +24,7 @@ TestingPrefServiceBase<PrefService, PrefRegistry>::TestingPrefServiceBase(
           new PrefValueStore(managed_prefs,
                              NULL,
                              NULL,
+                             NULL,
                              user_prefs,
                              recommended_prefs,
                              pref_registry->defaults().get(),
@@ -39,12 +40,11 @@ TestingPrefServiceBase<PrefService, PrefRegistry>::TestingPrefServiceBase(
 
 TestingPrefServiceSimple::TestingPrefServiceSimple()
     : TestingPrefServiceBase<PrefService, PrefRegistry>(
-        new TestingPrefStore(),
-        new TestingPrefStore(),
-        new TestingPrefStore(),
-        new PrefRegistrySimple(),
-        new PrefNotifierImpl()) {
-}
+          new TestingPrefStore(),
+          new TestingPrefStore(),
+          new TestingPrefStore(),
+          new PrefRegistrySimple(),
+          new PrefNotifierImpl()) {}
 
 TestingPrefServiceSimple::~TestingPrefServiceSimple() {
 }