Add sticky nodes affected by inner and outer viewport bounds deltas.

cc/trees/transform_node.h

Index: cc/trees/transform_node.h
diff --git a/cc/trees/transform_node.h b/cc/trees/transform_node.h
index 35982e42fc92ebace74e5165c28138c97dccb5bb..9d4b6a4d566a0c1e4ec021776b5d16607e8a20c5 100644
--- a/cc/trees/transform_node.h
+++ b/cc/trees/transform_node.h
@@ -98,10 +98,10 @@ struct CC_EXPORT TransformNode {
 
   // These are used to position nodes wrt the right or bottom of the inner or
   // outer viewport.
-  bool affected_by_inner_viewport_bounds_delta_x : 1;
-  bool affected_by_inner_viewport_bounds_delta_y : 1;
-  bool affected_by_outer_viewport_bounds_delta_x : 1;
-  bool affected_by_outer_viewport_bounds_delta_y : 1;
+  bool moved_by_inner_viewport_bounds_delta_x : 1;
+  bool moved_by_inner_viewport_bounds_delta_y : 1;
+  bool moved_by_outer_viewport_bounds_delta_x : 1;
+  bool moved_by_outer_viewport_bounds_delta_y : 1;
 
   // Layer scale factor is used as a fallback when we either cannot adjust
   // raster scale or if the raster scale cannot be extracted from the screen