tree 339e36abf6f3ee5e34639e9b7adf023598b39bd8
parent a8329d3cb18de7fbd1f67e4abda656c5967d55ca
author Xianzhu Wang <wangxianzhu@chromium.org> 1607635987 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1607637118 -0800

Correct painting order of SVG mask and mask-based clip-path

In paint properties, if both mask and mask-based clip-path exist, we
make the ClipPathMask effect node as a child of Mask node, which
requires us to paint mask before clip-path mask. The latter applies on
the former to create an intersection of the masks, then the intersection
will be applied to the masked content.

Previously the clip-path mask was painted before the mask, and the
former applies to a transparent backdrop which had no effect.

Bug: 1155384
Change-Id: Ic40c8254193c141a286c4b323515fabf8a76e11a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2583154
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#835813}