Revert of WebP: Regression test for incremental decoding (https://codereview.chromium.org/255523004/)

Reason for revert:
Inappropriate test data.


Original issue's description:
> WebP: Regression test for incremental decoding
> 
> Add a test for http://crbug.com/364830
> 
> BUG=364830
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=172569

TBR=noel@chromium.org,urvang@google.com
NOTREECHECKS=true
NOTRY=true
BUG=364830

Review URL: https://codereview.chromium.org/256613003

git-svn-id: svn://svn.chromium.org/blink/trunk@172714 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Sync test expectations after r172680.

r172680 retired a set of unsound DOMWindow destructor asserts; remove
the flaky test expectations that had been added due to them.

R=
BUG=349528, 356992, 356994, 356995, 357069, 357460, 357461, 366043

Review URL: https://codereview.chromium.org/258713007

git-svn-id: svn://svn.chromium.org/blink/trunk@172715 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r172712

http://src.chromium.org/viewvc/blink?view=revision&revision=172712

BUG=367201
TBR=senorblanco@chromium.org

Review URL: https://codereview.chromium.org/252683009

git-svn-id: svn://svn.chromium.org/blink/trunk@172716 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Web Animations: Avoid animating between null CSS image values

After a CSSImageSetValue is destructed the pointer to it from the
StyleFetchedImageSet is cleared. Calling
StyleFetchedImageSet::cssValue() after this point will return null.
Ideally we should reconstruct the original CSSImageSetvalue and
return that however there is not enough information in the
StyleFetchedImageSet to do this.

The code path to hit this condition is an obscure edge case
(see test) and the introduction of Oilpan should resolve the need to
nullify the CSSValue pointer in the first place.
With this in mind we should simply avoid crashing and introduce mildly
incorrect behaviour instead of adding complexity to the code while we
wait for Oilpan to complete.

BUG=363567

Review URL: https://codereview.chromium.org/255563002

git-svn-id: svn://svn.chromium.org/blink/trunk@172717 bbb929c8-8fbe-4397-9dbb-9b2b20218538