tree c3ed38464d460a168fd480995242a41c046445e6
parent 5bbf35f1339d749885c8acb72f30e34199a142b8
author dtapuska <dtapuska@chromium.org> 1445297274 -0700
committer Commit bot <commit-bot@chromium.org> 1445297318 +0000

Usage counter for add/removeEventListener third argument.

Check to see if the third argument on the add/removeEventListener is
a boolean; if it isn't log a UMA metric.

BUG=543685

Review URL: https://codereview.chromium.org/1414533002

Cr-Commit-Position: refs/heads/master@{#354908}