tree 4e52bc735a654401c086a0cd035444e9e820d458
parent c49ebce500f1ae15c9ff68bde12bc822d681e5d4
author Yoav Weiss <yoavweiss@chromium.org> 1647852009 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1647852539 -0700

Trigger FCP when opacity is changed

We're seeing cases where FCP is not being properly reported when it's
caused by an opacity change whose paint is optimized away using
`will-change: opacity`. This CL fixes that by tying those FCP reports
to our existing mechanism to report ignored LCP entries in those cases.

Bug: 1279548
Change-Id: I71e8f8a1fb7f0f4df442c1c057bcf289b353226e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3536567
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Yoav Weiss <yoavweiss@chromium.org>
Cr-Commit-Position: refs/heads/main@{#983231}