[Sync] Replace all instances of ModelTypeSet with ModelEnumSet

chrome/browser/sync/glue/generic_change_processor.cc

Index: chrome/browser/sync/glue/generic_change_processor.cc
diff --git a/chrome/browser/sync/glue/generic_change_processor.cc b/chrome/browser/sync/glue/generic_change_processor.cc
index 03cd8697bc0d2949235c145014bd8a26eb2db8a3..f20787f9e3c6e2bfca1bbc8fd9d6e4a80e961475 100644
--- a/chrome/browser/sync/glue/generic_change_processor.cc
+++ b/chrome/browser/sync/glue/generic_change_processor.cc
@@ -252,9 +252,8 @@ bool GenericChangeProcessor::CryptoReadyIfNecessary(syncable::ModelType type) {
   DCHECK_NE(type, syncable::UNSPECIFIED);
   // We only access the cryptographer while holding a transaction.
   sync_api::ReadTransaction trans(FROM_HERE, share_handle());
-  const syncable::ModelTypeSet& encrypted_types =
-      GetEncryptedTypes(&trans);
-  return encrypted_types.count(type) == 0 ||
+  const syncable::ModelEnumSet encrypted_types = GetEncryptedTypes(&trans);
+  return !encrypted_types.Has(type) ||
          trans.GetCryptographer()->is_ready();
 }