CC Animations: Make sure that HtmlViewer uses compositor-animation-timelines

components/html_viewer/web_layer_tree_view_impl.cc

Index: components/html_viewer/web_layer_tree_view_impl.cc
diff --git a/components/html_viewer/web_layer_tree_view_impl.cc b/components/html_viewer/web_layer_tree_view_impl.cc
index c379bc9bcea62ab7a8bc70198653ddfed30c6a79..2f793b8038719489fbd1a3a75165c7080c0d2bb3 100644
--- a/components/html_viewer/web_layer_tree_view_impl.cc
+++ b/components/html_viewer/web_layer_tree_view_impl.cc
@@ -41,6 +41,9 @@ WebLayerTreeViewImpl::WebLayerTreeViewImpl(
   // to keep content always crisp when possible.
   settings.layer_transforms_should_scale_layer_contents = true;
 
+  // Use new animation system (cc::AnimationHost).
+  settings.use_compositor_animation_timelines = true;
+
   // TODO(rjkroege): Not having a shared tile transport breaks
   // software compositing. Add bitmap transport support.
   cc::SharedBitmapManager* shared_bitmap_manager = nullptr;