The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/cfc3637df44106a1c7401735799162db5472dbcd

commit cfc3637df44106a1c7401735799162db5472dbcd
Author: Nicolas Pena <npm@chromium.org>
Date: Wed May 02 16:03:10 2018

Remove QueueingTimeEstimator::State

This CL removes the State member of QueueingTimeEstimator since it is no
longer needed. This is the first step in the plan to report EQT by TTI.

https://docs.google.com/document/d/19D0f5VGFNmqJDcl5_AqkYOm1iUX24adPloCRO58aiH4/

Bug:  832680 , 830882
Change-Id: I571c75a15b51be1f8bff5b105257d6bb0d1092fc
Reviewed-on: https://chromium-review.googlesource.com/1035162
Reviewed-by: Alexander Timin <altimin@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555409}
[modify] https://crrev.com/cfc3637df44106a1c7401735799162db5472dbcd/third_party/blink/renderer/platform/scheduler/renderer/queueing_time_estimator.cc
[modify] https://crrev.com/cfc3637df44106a1c7401735799162db5472dbcd/third_party/blink/renderer/platform/scheduler/renderer/queueing_time_estimator.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2b8f0454aedcf19ab395c7c4b87a52ea111202a7

commit 2b8f0454aedcf19ab395c7c4b87a52ea111202a7
Author: Nicolas Pena <npm@chromium.org>
Date: Wed Jul 11 14:58:01 2018

Remove RecordQueueingTimeClient

Bug:  832680 , 830882
Change-Id: I7fc5145f1b1ce9fee9bff6470cc55cda578e2c64
Reviewed-on: https://chromium-review.googlesource.com/1127259
Reviewed-by: Alexander Timin <altimin@chromium.org>
Reviewed-by: Timothy Dresser <tdresser@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574161}
[modify] https://crrev.com/2b8f0454aedcf19ab395c7c4b87a52ea111202a7/third_party/blink/renderer/platform/scheduler/main_thread/queueing_time_estimator.cc

Tom, do you want to take this bug? I ask since you're already doing all the refactoring needed to report EQT before and after TTI.

Makes sense to me. I'll reserve the right to pester you with questions, though :)