Add gesture ref-tests suppressions.

Relocating suppressions from Chromium's skia_test_expectations.txt.

TBR=bokan@chromium.org
BUG=399719

Review URL: https://codereview.chromium.org/436683006

git-svn-id: svn://svn.chromium.org/blink/trunk@179412 bbb929c8-8fbe-4397-9dbb-9b2b20218538