[Sync] Convert syncable/ directory to ModelEnumSet

chrome/browser/sync/notifier/registration_manager.cc

Index: chrome/browser/sync/notifier/registration_manager.cc
diff --git a/chrome/browser/sync/notifier/registration_manager.cc b/chrome/browser/sync/notifier/registration_manager.cc
index 2ab8b6274cfedb1ad896e189df23f20b6f936e2e..d510012bcf3aeac32afcda72d2616c9ead28e3c6 100644
--- a/chrome/browser/sync/notifier/registration_manager.cc
+++ b/chrome/browser/sync/notifier/registration_manager.cc
@@ -70,13 +70,13 @@ RegistrationManager::~RegistrationManager() {
 }
 
 void RegistrationManager::SetRegisteredTypes(
-    const syncable::ModelTypeSet& types) {
+    syncable::ModelEnumSet types) {
   DCHECK(non_thread_safe_.CalledOnValidThread());
 
   for (int i = syncable::FIRST_REAL_MODEL_TYPE;
        i < syncable::MODEL_TYPE_COUNT; ++i) {
     syncable::ModelType model_type = syncable::ModelTypeFromInt(i);
-    if (types.count(model_type) > 0) {
+    if (types.Has(model_type)) {
       if (!IsTypeRegistered(model_type)) {
         TryRegisterType(model_type, false /* is_retry */);
       }
@@ -118,14 +118,14 @@ void RegistrationManager::DisableType(syncable::ModelType model_type) {
   status->Disable();
 }
 
-syncable::ModelTypeSet RegistrationManager::GetRegisteredTypes() const {
+syncable::ModelEnumSet RegistrationManager::GetRegisteredTypes() const {
   DCHECK(non_thread_safe_.CalledOnValidThread());
-  syncable::ModelTypeSet registered_types;
+  syncable::ModelEnumSet registered_types;
   for (int i = syncable::FIRST_REAL_MODEL_TYPE;
        i < syncable::MODEL_TYPE_COUNT; ++i) {
     syncable::ModelType model_type = syncable::ModelTypeFromInt(i);
     if (IsTypeRegistered(model_type)) {
-      registered_types.insert(model_type);
+      registered_types.Put(model_type);
     }
   }
   return registered_types;