tree 7533e44e5b6d531422b82cb80fb1cb8ee127cbc8
parent df65e48efa85dedf00741260c19636cc32c3197b
author Fredrik Söderquist <fs@opera.com> 1695229346 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1695230516 -0700

Fix 'currentcolor' handling for drop-shadow(...) filter functions

For drop-shadow(), the 'currentcolor' keyword was resolved at style
resolution time by FilterOperationResolver. This means that it was baked
into style, and couldn't respond to a change in color.

Instead preserve the keyword in the FilterOperation and let the
FilterEffectBuilder resolve the color if needed. Add infrastructure to
FilterOperation/s to determine if a filter chain depends on
'currentcolor' to allow invalidation of the filter chain when the color
changes.

Bug: 1469327
Change-Id: I81bd0324637f1c1111add5d74c58418f205c3c77
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4863914
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1199067}