commit 1cdaa38724146a00b299b52fc2fc226049a3e363
author mvanouwerkerk <mvanouwerkerk@chromium.org> Wed May 11 16:15:26 2016
committer Commit bot <commit-bot@chromium.org> Wed May 11 16:17:03 2016
tree bb59d65b0c0b9438f0bdb560618008f9c3989cc6
parent 7533e2189106b000b2980d529d0b86e88499ac86

Restore the histograms for notification resource loading.

These were lost when this functionality was ported from content to blink.

* Originally defined in https://codereview.chromium.org/1715763002
* Notifications.Icon.LoadFinishTime was originally defined using UMA_HISTOGRAM_LONG_TIMES so matches that configuration.
* Notifications.Icon.LoadFailTime was originally defined using UMA_HISTOGRAM_LONG_TIMES so matches that configuration.
* Notifications.Icon.ScaleDownTime was originally defined using SCOPED_UMA_HISTOGRAM_TIMER so matches that configuration.

BUG=592188

Review-Url: https://codereview.chromium.org/1904293003
Cr-Commit-Position: refs/heads/master@{#392943}