Fix style recalc assumption in LayoutTests/svg/custom/mask-invalidation.svg

This patch fixes an incorrect assumption in mask-invalidation.svg that
a style recalc occurs after deferring to setTimeout. This patch replaces
that setTimeout with a requestAnimationFrame call.

R=abarth
BUG=337885
NOTRY=true

Review URL: https://codereview.chromium.org/140613006

git-svn-id: svn://svn.chromium.org/blink/trunk@165870 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Unify 2x images naming.

R=eustas, pfeldman

Review URL: https://codereview.chromium.org/137423004

git-svn-id: svn://svn.chromium.org/blink/trunk@165871 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: shortcut to close active editor tab

This patch assigns Alt-W shortcut to close active editor tab.

BUG=338324

Review URL: https://codereview.chromium.org/148233003

git-svn-id: svn://svn.chromium.org/blink/trunk@165872 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Delete the last references to Geolocation from core.

BUG=336263

Review URL: https://codereview.chromium.org/145693008

git-svn-id: svn://svn.chromium.org/blink/trunk@165874 bbb929c8-8fbe-4397-9dbb-9b2b20218538