Revert of Generalize scroll parent work in CalculateDrawProperties

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index b76a4fb251edf50747743338f514acc801a32884..277f05c0b8aa0e3647d8f479c25de31d439665e9 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -456,10 +456,6 @@
   ScopedPtrVector<SwapPromise> swap_promise_list_;
   std::set<SwapPromiseMonitor*> swap_promise_monitor_;
 
-  // We associate work done in CalculateDrawProperties with a sequence number
-  // to avoid having to do extra walks to clear values.
-  int render_surface_layer_list_id_;
-
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };