Handing over to Ryan as https://crrev.com/c/1020304 will fix this.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/84d795bcd1775f4c89690dad60ad5c9838166ccf

commit 84d795bcd1775f4c89690dad60ad5c9838166ccf
Author: Ryan Sleevi <rsleevi@chromium.org>
Date: Wed May 09 07:06:00 2018

Refactor Certificate Transparency initialization for S13N

Chrome is currently experimenting with using DNS as part of
ensuring the Certificate Transparency logs provide globally
consistent views. When using the Network Service, certificate
verification is performed in the service/context, rather than
the browser context, meaning that the consistency proof
checking also needs to be moved into the Network Service.

However, Certificate Transparency support is also being moved
up into Chrome proper, rather than as part of //net, in order
to ensure the ecosystem does not prematurely ossify.

This CL moves the DNS portion from //chrome, and in particular,
the IOThread, into the Network Service, while moving
initialization of the logs up from //net and into //chrome, by
way of explicit parameters in the NetworkContextParams. If the
set of logs are not supplied, no CT support is initialized, and
if they are supplied, then log consistency checking is enabled if
the base::Feature is enabled.

Bug:  702062 ,  769401 ,  803871 ,  835849 

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_mojo
Change-Id: I8befb033255366d8431922e29e18879d3cf1b7dc
Reviewed-on: https://chromium-review.googlesource.com/1020304
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: Sorin Jianu <sorin@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#557112}
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/BUILD.gn
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/component_updater/sth_set_component_installer.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/component_updater/sth_set_component_installer.h
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/component_updater/sth_set_component_installer_unittest.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/io_thread.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/io_thread.h
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/io_thread_browsertest.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/net/default_network_context_params.cc
[delete] https://crrev.com/5bc74f5fff976f92f3b9ff3a71c9d1d8ffc58802/chrome/browser/net/sth_distributor_provider.cc
[delete] https://crrev.com/5bc74f5fff976f92f3b9ff3a71c9d1d8ffc58802/chrome/browser/net/sth_distributor_provider.h
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/profiles/profile_io_data.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/browser/profiles/profile_io_data.h
[delete] https://crrev.com/5bc74f5fff976f92f3b9ff3a71c9d1d8ffc58802/chrome/browser/ssl/certificate_transparency_browsertest.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/chrome/test/BUILD.gn
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/net/cert/signed_certificate_timestamp.h
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/BUILD.gn
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/network_context.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/network_context.h
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/network_context_cert_transparency_unittest.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/network_service.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/network_service.h
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/BUILD.gn
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/digitally_signed.typemap
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/digitally_signed_mojom_traits.cc
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/digitally_signed_mojom_traits.h
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/digitally_signed_mojom_traits_unittest.cc
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/signed_tree_head.typemap
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/signed_tree_head_mojom_traits.cc
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/signed_tree_head_mojom_traits.h
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/signed_tree_head_mojom_traits_unittest.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/cpp/typemaps.gni
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/mojom/BUILD.gn
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/mojom/ct_log_info.mojom
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/mojom/digitally_signed.mojom
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/mojom/network_service.mojom
[add] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/public/mojom/signed_tree_head.mojom
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/services/network/url_request_context_builder_mojo.cc
[modify] https://crrev.com/84d795bcd1775f4c89690dad60ad5c9838166ccf/testing/buildbot/filters/mojo.fyi.network_browser_tests.filter