Roll Chrome into Mojo.

cc/layers/layer_impl.cc

Index: cc/layers/layer_impl.cc
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index c5c759c938d830f0cdd96edbdaddce309aac5817..281a3ae411a624d9a35a94adde9b4f6fff3dd5e1 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -335,6 +335,11 @@ RenderPassId LayerImpl::NextContributingRenderPassId(RenderPassId id) const {
   return RenderPassId(0, 0);
 }
 
+bool LayerImpl::UpdateTiles(const Occlusion& occlusion_in_layer_space,
+                            bool resourceless_software_draw) {
+  return false;
+}
+
 void LayerImpl::GetContentsResourceId(ResourceProvider::ResourceId* resource_id,
                                       gfx::Size* resource_size) const {
   NOTREACHED();