FYI: Control Data + Per-Device Metadata

sync/internal_api/write_node.cc

Index: sync/internal_api/write_node.cc
diff --git a/sync/internal_api/write_node.cc b/sync/internal_api/write_node.cc
index 22d7e5f248b7d613813ffb51b6bd67837fad5c1b..732a75fbab68eb790e9af0eabbb52e663ce1566c 100644
--- a/sync/internal_api/write_node.cc
+++ b/sync/internal_api/write_node.cc
@@ -190,6 +190,20 @@ void WriteNode::SetSessionSpecifics(
   SetEntitySpecifics(entity_specifics);
 }
 
+void WriteNode::SetPerDeviceSpecifics(
+    const sync_pb::PerDeviceSpecifics& new_value) {
+  sync_pb::EntitySpecifics entity_specifics;
+  entity_specifics.mutable_per_device_metadata()->CopyFrom(new_value);
+  SetEntitySpecifics(entity_specifics);
+}
+
+void WriteNode::SetPerUserSpecifics(
+    const sync_pb::PerUserSpecifics& new_value) {
+  sync_pb::EntitySpecifics entity_specifics;
+  entity_specifics.mutable_per_user_metadata()->CopyFrom(new_value);
+  SetEntitySpecifics(entity_specifics);
+}
+
 void WriteNode::SetEntitySpecifics(
     const sync_pb::EntitySpecifics& new_value) {
   ModelType new_specifics_type =