commit e02cf2c03edc5120fb724f2b5df45b496a5392ee
author Andreu Botella <abotella@igalia.com> Wed Jan 25 04:26:17 2023
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Jan 25 04:26:17 2023
tree e355ad57c3838a4c8cef41a77e1acc5a8b621698
parent 56a52d66b15a1a3937390a99e5e573a46a7fa8ab

Fix line breaking with `break-spaces` in the presence of close tags

With the `white-space: break-spaces` CSS property, white spaces are
always preserved, and they always take space. Combined with the fact
that white space characters have a break opportunity after them, but
not before (as required by UAX#14), this means that a word which
exactly fits the remaining inline size of the line, could not fit in
that line without overflow if it was followed by a space.

Chromium's implementation of `break-spaces`, however, did allow
breaking between a word and a space if there was a closing element
boundary in the way, even if both sides of the boundary had
`white-space: break-spaces`. This is because
`NGLineBreaker::HandleCloseTag` did not seem to be considering the
`break-spaces` class. This CL fixes this.

Bug: 1261435
Change-Id: I010cf99ffb0c2cf03b4ff2547a412cc44c7e1bab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4150327
Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: Andreu Botella <abotella@igalia.com>
Cr-Commit-Position: refs/heads/main@{#1096617}