tree 992edbd0b9b6517ad9f8e0289b75b489024b5fbe
parent 99a22a513d6909a1d6c835b50397b7422698883a
author lanwei <lanwei@chromium.org> 1471630991 -0700
committer Commit bot <commit-bot@chromium.org> 1471631116 +0000

Make first TouchStart and first TouchMove events on a flinging layer non-blocking.

Blocking touchstart and first touchMove handlers during fling can cause major hiccups during
fling boosting / flywheel fling.

We are doing a passive event listener during fling intervention experiment to see if we can
improve the fling performance by forcing touchstart and first touchmove to be passive when
there is an active fling animation.

BUG=595327

Review-Url: https://codereview.chromium.org/2233543002
Cr-Commit-Position: refs/heads/master@{#413189}