1676495 - [wpt-sync] Sync PR 26475 - Improve will-change:transform raster scale adjustment

Status: RESOLVED FIXED

(Core :: Web Painting, task, P4)

Description

[Web Platform Test Sync Bot (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 26475 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/26475
Details from upstream follow.

b'Xianzhu Wang <[e-mail]>' wrote:

Improve will-change:transform raster scale adjustment

This fixes the issue of too big scale for will-change:transform layers
by

• Partly reverting crrev.com/c/2447650 to apply the change on tiny
  scales only. When the ideal scale is not tiny, use the original policy
  to clamp minimum scale to the native scale.
• Increasing kMinScaleRatioForWillChangeTransform from 0.1 to 0.25 to
  reduce memory and number of tiles when the scale is bigger than ideal,
  from 100x to 16x in worst cases.

Bug: 1146393
Change-Id: Ida5720f5126648c2fad0b9921781714fa006d346
Reviewed-on: https://chromium-review.googlesource.com/2527733
WPT-Export-Revision: 1b8b05d2afc6470327aa6cc65dffbce1e4f41ad9

Comment 1

[Web Platform Test Sync Bot (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=7aad36fc23f3485a9dc65d8306e7225921f6b379

Comment 2

[Web Platform Test Sync Bot (Matrix: #interop:mozilla.org)]

CI Results

Ran 0 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 2 tests

Status Summary

Firefox

PASS: 2

Chrome

PASS: 1
FAIL: 1

Safari

PASS: 2

Links

GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ed0612eb5b0b
[wpt PR 26475] - Improve will-change:transform raster scale adjustment, a=testonly

Comment 4

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/ed0612eb5b0b