[Sync] Support commit only types.

components/sync/model/model_type_change_processor.cc

Index: components/sync/model/model_type_change_processor.cc
diff --git a/components/sync/model/model_type_change_processor.cc b/components/sync/model/model_type_change_processor.cc
index f32b12fd5839eaa18ba646fcd7c7ccaea0ec91e1..217300be395a5c0f9ee48e506bf29c6a74fdd7b1 100644
--- a/components/sync/model/model_type_change_processor.cc
+++ b/components/sync/model/model_type_change_processor.cc
@@ -14,7 +14,8 @@ std::unique_ptr<ModelTypeChangeProcessor> ModelTypeChangeProcessor::Create(
     const base::RepeatingClosure& dump_stack,
     ModelType type,
     ModelTypeSyncBridge* bridge) {
-  return base::MakeUnique<SharedModelTypeProcessor>(type, bridge, dump_stack);
+  return base::MakeUnique<SharedModelTypeProcessor>(
+      type, bridge, dump_stack, CommitOnlyTypes().Has(type));
 }
 
 ModelTypeChangeProcessor::ModelTypeChangeProcessor() {}