[Webkit-unassigned] [Bug 199364] CSS animations in SVG do not repaint when SVG is zoomed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=199364

--- Comment #6 from Ahmad Saleem <ahmad.saleem792 at gmail.com> ---
I tried to fix this bug in following PR:

https://github.com/WebKit/WebKit/pull/4727

by merging following Blink commit:

https://src.chromium.org/viewvc/blink?view=revision&revision=174874

NOTE - Webkit has currently two parallel SVG implementations:

1) Legacy
2) New Layer Based (LBSE)

Blink patch was modifying code present in LBSE layer (might be common code moved from Legacy to be reused in LBSE).

Based on my discussion with @Said on the PR, it seems that Blink patch is not addressing this CSS animation bug which is kind of repairing / style invalidation issue.

Similarly, Blink commit is also not fixing this case and even the test case with it is not showing any clear expected output to reflect what is being fixed with this patch.

This PR compiles and does not have any failed test case.

Additional note - if I try to take newer code of this test case from Blink / Chromium source, it uses 'rAf' but using updated test script, which leverages some tooling not available in Webkit so we cannot take as is Blink / Chromium latest test case and test in Webkit infrastructure.

Just wanted to document the attempt while I try to investigate in background. Thanks!

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