Remove most occurences of PrefRegistrySyncable::UNSYNCABLE_PREF

chrome/browser/custom_handlers/protocol_handler_registry.cc

Index: chrome/browser/custom_handlers/protocol_handler_registry.cc
diff --git a/chrome/browser/custom_handlers/protocol_handler_registry.cc b/chrome/browser/custom_handlers/protocol_handler_registry.cc
index 88a20e3562090227c46416abd69697695b9f753e..43b1b20694a49f4e421c05ec630f16e1f5ad832d 100644
--- a/chrome/browser/custom_handlers/protocol_handler_registry.cc
+++ b/chrome/browser/custom_handlers/protocol_handler_registry.cc
@@ -727,18 +727,11 @@ void ProtocolHandlerRegistry::Shutdown() {
 // static
 void ProtocolHandlerRegistry::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
-  registry->RegisterListPref(prefs::kRegisteredProtocolHandlers,
-                             user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-  registry->RegisterListPref(prefs::kIgnoredProtocolHandlers,
-                             user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-  registry->RegisterListPref(prefs::kPolicyRegisteredProtocolHandlers,
-                             user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-  registry->RegisterListPref(prefs::kPolicyIgnoredProtocolHandlers,
-                             user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-  registry->RegisterBooleanPref(
-      prefs::kCustomHandlersEnabled,
-      true,
-      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterListPref(prefs::kRegisteredProtocolHandlers);
+  registry->RegisterListPref(prefs::kIgnoredProtocolHandlers);
+  registry->RegisterListPref(prefs::kPolicyRegisteredProtocolHandlers);
+  registry->RegisterListPref(prefs::kPolicyIgnoredProtocolHandlers);
+  registry->RegisterBooleanPref(prefs::kCustomHandlersEnabled, true);
 }
 
 ProtocolHandlerRegistry::~ProtocolHandlerRegistry() {