cc: Clean up transform tree

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 1e8c3910aaa08a8449e3a5136995e0f6661e04eb..d6c6cc453cf6c9b98f8cd08e395d09fb9392bbc3 100644
--- a/cc/trees/transform_node.h
+++ b/cc/trees/transform_node.h
@@ -94,8 +94,6 @@ struct CC_EXPORT TransformNode {
 
   bool scrolls : 1;
 
-  bool needs_surface_contents_scale : 1;
-
   // 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;
@@ -115,8 +113,6 @@ struct CC_EXPORT TransformNode {
   // TODO(vollick): will be moved when accelerated effects are implemented.
   float post_local_scale_factor;
 
-  gfx::Vector2dF surface_contents_scale;
-
   // TODO(vollick): will be moved when accelerated effects are implemented.
   gfx::ScrollOffset scroll_offset;
 
@@ -152,8 +148,6 @@ struct CC_EXPORT TransformCachedNodeData {
   TransformCachedNodeData(const TransformCachedNodeData& other);
   ~TransformCachedNodeData();
 
-  gfx::Transform from_target;
-  gfx::Transform to_target;
   gfx::Transform from_screen;
   gfx::Transform to_screen;
   int target_id;