cc: Construct the RSLL without using layer hierarchy

cc/layers/render_surface_impl.h

Index: cc/layers/render_surface_impl.h
diff --git a/cc/layers/render_surface_impl.h b/cc/layers/render_surface_impl.h
index cb7a795b3b1891e4d8e184cd1aa830aa0f46cf44..f30c5dfc57f0ffcc79014cdfa3fa696fd2a01fd5 100644
--- a/cc/layers/render_surface_impl.h
+++ b/cc/layers/render_surface_impl.h
@@ -61,6 +61,9 @@ class CC_EXPORT RenderSurfaceImpl {
   const RenderSurfaceImpl* nearest_occlusion_immune_ancestor() const {
     return nearest_occlusion_immune_ancestor_;
   }
+  RenderSurfaceImpl* nearest_occlusion_immune_ancestor() {

[weiliangc, 2016/04/19 15:05:59]

Is this non-const version really needed?

[ajuma, 2016/04/19 16:35:13]

Removed. Turns out I just needed to make SetNearestOcclusionImmuneAncestor take
a const pointer.

+    return nearest_occlusion_immune_ancestor_;
+  }
 
   SkColor GetDebugBorderColor() const;
   SkColor GetReplicaDebugBorderColor() const;