Update Ahem.woff2

The wire format of woff2 has changed as of ots r112.
I used woff2_compress to generate this font.

BUG=368983

Review URL: https://codereview.chromium.org/268593003

git-svn-id: svn://svn.chromium.org/blink/trunk@173065 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Add use counters for a number of prefixed APIs

BUG=none

Review URL: https://codereview.chromium.org/263633002

git-svn-id: svn://svn.chromium.org/blink/trunk@173066 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Web Animations API: Support non-animatable properties being animated via element.animate()

CSS Animations and Transitions have a select number of properties that
are allowed to be animated. Web Animations allows for all non-animation
properties falling back to a default 50% flip interpolation between values.
This patch adds support to element.animate() for the non-animatable
non-animation properties.

Review URL: https://codereview.chromium.org/225653003

git-svn-id: svn://svn.chromium.org/blink/trunk@173067 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Gardening: more flaky svg/batik/text tests

BUG=352856
TBR=jsbell

Review URL: https://codereview.chromium.org/269573004

git-svn-id: svn://svn.chromium.org/blink/trunk@173068 bbb929c8-8fbe-4397-9dbb-9b2b20218538