tree bced8b9f7cae1c9eff7f37482fabda6a417abac0
parent a92aeac21a26eb3ee6d0cd3034f4693a79292a11
author Seokho Song <0xdevssh@gmail.com> 1638370997 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1638372517 -0800

Clamp <length> in InterpolableLength::CreateLength and add DCHECK in Length constructors, add clamping in cubic-bezier

According to spec [1], the infinity and NaN should be clamped before other components consume the values.

Therefore, the infinity and NaN values clamped from InterpolableLength to  Length which will be consumed to interpolate length.

And add DCHECK(infinite) statement in Length constructors to ensure and check the no infinity and NaN values.

The calculation of CubicBezier can be degenerated values.
Therefore add a clamp function ToFinite in calculation functions CubicBezier can return inf or -inf or NaN.

The Spec: [1]
Design docs: [2]

[1]  https://drafts.csswg.org/css-values/#calc-type-checking
[2] https://bit.ly/349gXjq

Bug: 1133390
Change-Id: Ibb7dbee997d883968c855754ab93f184c3f09306
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3136033
Commit-Queue: Seokho Song <0xdevssh@gmail.com>
Reviewed-by: Ali Juma <ajuma@chromium.org>
Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Mason Freed <masonf@chromium.org>
Cr-Commit-Position: refs/heads/main@{#946998}