GitLab

The Safe Browsing check blocks the URL loader when the URL loader
starts to process the response. We'd like to know how often that happens
and how long does the Safe Browsing check block the URL loader.

Metrics added in this CL:
SafeBrowsing.BrowserThrottle.IsCheckCompletedOnProcessResponse
SafeBrowsing.BrowserThrottle.TotalDelay

Bug: 1144265
Change-Id: I7a14548170458e04fe9452647b347a84780819b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2510742
Commit-Queue: Xinghui Lu <xinghuilu@chromium.org>
Reviewed-by: Varun Khaneja <vakh@chromium.org>
Reviewed-by: Weilun Shi <sweilun@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823448}