commit 5c563b099036a96fc1e2b0ede70ec83d14012bc6
author estark <estark@chromium.org> Sat Nov 19 07:29:15 2016
committer Commit bot <commit-bot@chromium.org> Sat Nov 19 07:31:53 2016
tree ed57585891e88007e367cd05e13c5baf6a09bc08
parent 4312c9f8688669f7adb6a6102cf73e8e58777c8d

Record time to navigation/tab-closed after HTTP-bad warning

This CL adds UMA metrics to record the time after displaying a
password/credit-card field on an HTTP page until the user navigates or
closes the tab.

By comparing these metrics for users who see the omnibox warning and
those who only get a console warning, we hope to get some idea of how
the HTTP-bad omnibox warning affects user behavior.

BUG=663924

Review-Url: https://codereview.chromium.org/2499243002
Cr-Commit-Position: refs/heads/master@{#433411}