[text-box-trim] Fix when there is a Ruby annotation
text-box-trim is supposed to trim all parts above the point
specified by the text-box-edge. This patch fixes Ruby
annotation preventing the trimming.
This patch has no behavior changes as the changes are under a
runtime flag.
Bug: 40254880
Change-Id: I52f40bbba919beddad398c4400b5715b6e5f2fb5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5539108
Reviewed-by: Kent Tamura tkent@chromium.org
Commit-Queue: Kent Tamura tkent@chromium.org
Auto-Submit: Koji Ishii kojii@chromium.org
Cr-Commit-Position: refs/heads/main@{#1301089}