Unified: Don't modify sub-section header font on updates

BUG=891950,863618

Change-Id: Ie52e4939e39ae26c01e64ba119ddd0933f0a8e69
Reviewed-on: https://chromium-review.googlesource.com/c/1356942
Commit-Queue: Tony De Luna <tonydeluna@chromium.org>
Reviewed-by: Jenny Zhang <jennyz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614181}
1 file changed