The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/60a21d3ac362c31fc56681fcdacf5e15cb9a6220

commit 60a21d3ac362c31fc56681fcdacf5e15cb9a6220
Author: Mark Pilgrim <pilgrim@chromium.org>
Date: Wed May 30 15:37:40 2018

Migrate PopularSitesImpl to SimpleURLLoader

As part of the effort to bring the new Network Service online, we are
deprecating URLFetcher in favor of SimpleURLLoader.

Background: https://docs.google.com/document/d/1YZDPeg3bf46QPU_vUotFwOEPHquww36b-UdRlO3ZpMU/edit

Bug:  844943 
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I77ec8b2c4ff6a11995f3b6c2ec911c94b16789e4
Reviewed-on: https://chromium-review.googlesource.com/1076596
Commit-Queue: Mark Pilgrim <pilgrim@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#562838}
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/chrome/browser/ntp_tiles/chrome_popular_sites_factory.cc
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/BUILD.gn
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/DEPS
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/most_visited_sites_unittest.cc
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/popular_sites_impl.cc
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/popular_sites_impl.h
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/components/ntp_tiles/popular_sites_impl_unittest.cc
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/ios/chrome/browser/ntp_tiles/BUILD.gn
[modify] https://crrev.com/60a21d3ac362c31fc56681fcdacf5e15cb9a6220/ios/chrome/browser/ntp_tiles/ios_popular_sites_factory.cc