Remove const LayerImpl* from QuadSink

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index b4a6a55f2feabe5dab84896377f5bb61ff329f65..ccd970d62d096913252b2f71ab814b294de687f2 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -582,7 +582,7 @@ static void AppendQuadsForLayer(
     LayerImpl* layer,
     const OcclusionTracker<LayerImpl>& occlusion_tracker,
     AppendQuadsData* append_quads_data) {
-  QuadSink quad_culler(target_render_pass, layer, &occlusion_tracker);
+  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
   layer->AppendQuads(&quad_culler, append_quads_data);
 }
 
@@ -592,7 +592,7 @@ static void AppendQuadsForRenderSurfaceLayer(
     const RenderPass* contributing_render_pass,
     const OcclusionTracker<LayerImpl>& occlusion_tracker,
     AppendQuadsData* append_quads_data) {
-  QuadSink quad_culler(target_render_pass, layer, &occlusion_tracker);
+  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
 
   bool is_replica = false;
   layer->render_surface()->AppendQuads(&quad_culler,
@@ -635,7 +635,7 @@ static void AppendQuadsToFillScreen(
     screen_background_color_region.Intersect(root_scroll_layer_rect);
   }
 
-  QuadSink quad_culler(target_render_pass, root_layer, &occlusion_tracker);
+  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
 
   // Manually create the quad state for the gutter quads, as the root layer
   // doesn't have any bounds and so can't generate this itself.