fixup! Switch blink::ContainerNode to use new downcast helpers

This CL removes unwanted comment from styled_markup_serializer.cc

Bug: 891908
Change-Id: I97d47cc28cb5a20b98f59bed6f69ba87e412ec3a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1617564
Reviewed-by: Christian Biesinger <cbiesinger@chromium.org>
Commit-Queue: Abhijeet Kandalkar <abhijeet@igalia.com>
Cr-Commit-Position: refs/heads/master@{#661269}
1 file changed