Nukes change_ids from view manager

mojo/services/view_manager/test_change_tracker.h

Index: mojo/services/view_manager/test_change_tracker.h
diff --git a/mojo/services/view_manager/test_change_tracker.h b/mojo/services/view_manager/test_change_tracker.h
index 6021611556cb71bf859fb7e786053654857ab06d..d597c6faacbd040928d058c7269c256ab192d700 100644
--- a/mojo/services/view_manager/test_change_tracker.h
+++ b/mojo/services/view_manager/test_change_tracker.h
@@ -20,7 +20,6 @@ namespace service {
 enum ChangeType {
   CHANGE_TYPE_CONNECTION_ESTABLISHED,
   CHANGE_TYPE_ROOTS_ADDED,
-  CHANGE_TYPE_SERVER_CHANGE_ID_ADVANCED,
   CHANGE_TYPE_NODE_BOUNDS_CHANGED,
   CHANGE_TYPE_NODE_HIERARCHY_CHANGED,
   CHANGE_TYPE_NODE_REORDERED,
@@ -48,7 +47,6 @@ struct Change {
 
   ChangeType type;
   ConnectionSpecificId connection_id;
-  Id change_id;
   std::vector<TestNode> nodes;
   Id node_id;
   Id node_id2;
@@ -99,21 +97,17 @@ class TestChangeTracker {
   // ViewManagerClient function.
   void OnViewManagerConnectionEstablished(ConnectionSpecificId connection_id,
                                           const String& creator_url,
-                                          Id next_server_change_id,
                                           Array<NodeDataPtr> nodes);
   void OnRootAdded(Array<NodeDataPtr> nodes);
-  void OnServerChangeIdAdvanced(Id change_id);
   void OnNodeBoundsChanged(Id node_id, RectPtr old_bounds, RectPtr new_bounds);
   void OnNodeHierarchyChanged(Id node_id,
                               Id new_parent_id,
                               Id old_parent_id,
-                              Id server_change_id,
                               Array<NodeDataPtr> nodes);
   void OnNodeReordered(Id node_id,
                        Id relative_node_id,
-                       OrderDirection direction,
-                       Id server_change_id);
-  void OnNodeDeleted(Id node_id, Id server_change_id);
+                       OrderDirection direction);
+  void OnNodeDeleted(Id node_id);
   void OnViewDeleted(Id view_id);
   void OnNodeViewReplaced(Id node_id, Id new_view_id, Id old_view_id);
   void OnViewInputEvent(Id view_id, EventPtr event);