Revert "Implement the CSS image-animation property"

This reverts commit 0383d249f4843bcc19dbb6d201cc76d169c60cd7.

Reason for revert: suspect causing blink_unittests failure on Linux UBSan Test.

blink_unittests failed because of:
- LayoutSelectionTest.TraverseLayoutObjectListStyleImage
- LayoutTextCombineTest.ListItemStyleToImage
- StyleResolverTest.CSSMarkerPseudoElement
- UseCounterImplTest.CSSMarkerPseudoElementUA

First build failure:
https://ci.chromium.org/ui/p/chromium/builders/ci/Linux%20UBSan%20Tests/13361/

Original change's description:
> Implement the CSS image-animation property
>
> Add support for the CSS image-animation property, which controls the
> animated image playback. The property accepts three values:
>
> * normal: Default browser behavior
> * running: Per-element timeline
> * paused(tentative): Stop animated image
>
> Currently, image animations are managed by ImageAnimationController in
> the CC layer. The controller manages the animation information,
> including the next frame index and length, ...etc, via PaintImage's
> stable_id as a key.
>
> The paint image has been created by BitmapImage::Draw and the image
> shared the resource and paint image across the layout and styles if it
> has same absolute URL by the WHATWG standard [1].
>
> To pause, we should create new PaintImage with different paint id per
> each style.
>
> Therefore, pass the image animation information to the
> BitmapImage::Draw() to create different PaintImage by the style. The
> BitmapImage class now caches multiple PaintImage instances, which are
> keyed by DOM node ID and the animation state. This enables per-element
> animation.
>
> Another approach is to duplicate the image resource manually. However,
> this approach introduces another caching complexity on several layers.
> Therefore, we will not pursue this approach.
>
> Removing "reftest-wait" does not capture the pixels at the exact time on the Mac and it will cause flakiness. Therefore, the exception of -running test suites on Mac has been added to TestExpectations.
>
> [1] https://html.spec.whatwg.org/multipage/rendering.html#images-3
>
> Explainer: https://github.com/webplatformco/project-image-animation/tree/main/image-animation-property
> Unofficial Draft: https://webplatform.design/projects/image-animation/image-animation-property/spec/overview
> Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/0kUk5-6TAfM/m/7YVGLKzEBwAJ
> Chromestatus Entry: https://chromestatus.com/feature/5078177326170112
>
>
> Bug: 429459566
> Change-Id: I6e5b6d6cccf6419c7c7c817a7082409e69a9c406
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7458159
> Reviewed-by: Anders Hartvoll Ruud <[email protected]>
> Commit-Queue: Seokho Song <[email protected]>
> Reviewed-by: Florin Malita <[email protected]>
> Cr-Commit-Position: refs/heads/main@{#1575651}

Bug: 429459566
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: Ia26f9cef7a639659c289c50fae761fc412839e7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7526465
Owners-Override: Takashi Sakamoto <[email protected]>
Commit-Queue: Rubber Stamper <[email protected]>
Auto-Submit: Takashi Sakamoto <[email protected]>
Bot-Commit: Rubber Stamper <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1575715}

Author: tasak

css/css-image-animation/image-animation-background-paused.tentative-ref.html

@@ -157,8 +157,6 @@ SET TIMEOUT: common/reftest-wait.js
 SET TIMEOUT: compute-pressure/resources/support-iframe.html
 SET TIMEOUT: conformance-checkers/*
 SET TIMEOUT: content-security-policy/*
-SET TIMEOUT: css/css-image-animation/image-animation-img-running.tentative.html
-SET TIMEOUT: css/css-image-animation/image-animation-img-running-to-normal.tentative.html
 SET TIMEOUT: css/compositing/opacity-and-transform-animation-crash.html
 SET TIMEOUT: css/css-contain/contain-body-overflow-002.html
 SET TIMEOUT: css/css-display/display-contents-shadow-dom-1.html