tree 5dad01008dc14eb11907714b010386b4fd42f263
parent 2db1d05bfa03c7a217314aefc41749ff31959267
author Morten Stenshorne <mstensho@chromium.org> 1643139207 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1643139998 -0800

Issue full paint invalidation when fragment size changes.

Only do this if a fragment count of greater than 1 is involved, though.

This is a follow-up to CL:3393649, which did the same if the fragment
*count* changed (but that obviously wasn't enough).

We cannot re-use the cached drawing if a box gets refragmented. We would
otherwise do that if the total block-size of the box remains unchanged,
and its offset doesn't change.

Bug: 1285795
Change-Id: I38ccd8a1d2cdaab3457f9a84a1db5496cc46f5be
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3412071
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/main@{#963117}