The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466

commit 102bd7a31c15ce2521b48e90e0ac2d64ab0a5466
Author: Julia Tuttle <juliatuttle@chromium.org>
Date: Fri Jan 19 23:55:25 2018

Network Error Logging: Check for and fix AppRequestContext isolation.

Apps should be able to use NEL, but they shouldn't share state with the
main request context.

Bug:  803604 
Change-Id: I6533ce46e21c2b47e888524aeeeb293367919ab3
Reviewed-on: https://chromium-review.googlesource.com/875050
Commit-Queue: Julia Tuttle <juliatuttle@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#530668}
[modify] https://crrev.com/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466/chrome/browser/profiles/off_the_record_profile_io_data.cc
[modify] https://crrev.com/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466/chrome/browser/profiles/profile_browsertest.cc
[modify] https://crrev.com/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466/chrome/browser/profiles/profile_impl_io_data.cc
[modify] https://crrev.com/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466/chrome/browser/profiles/profile_io_data.cc
[modify] https://crrev.com/102bd7a31c15ce2521b48e90e0ac2d64ab0a5466/chrome/browser/profiles/profile_io_data.h