| 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 ad81d36afd66cf69c2d22d042f8e937ca780879a..ebc1d83dfc5c170b21bbf5d764ddc86a64887f72 100644 | 
| --- a/cc/trees/layer_tree_host_impl.cc | 
| +++ b/cc/trees/layer_tree_host_impl.cc | 
| @@ -1911,7 +1911,7 @@ static LayerImpl* NextScrollLayer(LayerImpl* layer) { | 
|  | 
| LayerImpl* LayerTreeHostImpl::FindScrollLayerForDeviceViewportPoint( | 
| gfx::PointF device_viewport_point, InputHandler::ScrollInputType type, | 
| -    LayerImpl* layer_impl, bool* scroll_on_main_thread) { | 
| +    LayerImpl* layer_impl, bool* scroll_on_main_thread) const { | 
| DCHECK(scroll_on_main_thread); | 
|  | 
| // Walk up the hierarchy and look for a scrollable layer. | 
|  |