tree a05e45785336cf7085b26ffa81a2e85fc0719719
parent 307056c29ae77cbd65e4b994fc0383d8cd9b9ed3
author Kent Tamura <tkent@chromium.org> 1592295191 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1592298511 -0700

RubyNG: A line shouldn't provide annotation space if it has text-emphasis

* A line has text-emphasis at the 'under' side, and the next line has
  ruby at 'over' side, or
* A line has ruby at the 'under' side, and the next line has
  text-emphasis at 'over' side

In these two cases, text-emphasis and ruby could be overlapped. This CL
fixes this issue.

Note:
 - The legacy ruby also has this issue, but this CL doesn't fix it for
   the legacy ruby.
 - The FAIL line in external/wpt/css/css-ruby/line-spacing-expected.txt
   is expected.  We'll fix it soon.

Bug: 1069817
Change-Id: Ie2201d577c58a77000c7ace7a1f3de718866a989
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2245991
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#778687}