The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dae311a51d9bba99bd934fd25f8d8d48b2da7eec

commit dae311a51d9bba99bd934fd25f8d8d48b2da7eec
Author: tbansal <tbansal@chromium.org>
Date: Tue May 31 18:40:54 2016

Record network quality UMA metrics on main frame requests

BUG= 614572 

Review-Url: https://codereview.chromium.org/2005143005
Cr-Commit-Position: refs/heads/master@{#396875}

[modify] https://crrev.com/dae311a51d9bba99bd934fd25f8d8d48b2da7eec/net/nqe/network_quality_estimator.cc
[modify] https://crrev.com/dae311a51d9bba99bd934fd25f8d8d48b2da7eec/net/nqe/network_quality_estimator.h
[modify] https://crrev.com/dae311a51d9bba99bd934fd25f8d8d48b2da7eec/net/nqe/network_quality_estimator_unittest.cc
[modify] https://crrev.com/dae311a51d9bba99bd934fd25f8d8d48b2da7eec/tools/metrics/histograms/histograms.xml

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2052c61710876afbc63a0ff159509f91a152812b

commit 2052c61710876afbc63a0ff159509f91a152812b
Author: tbansal <tbansal@chromium.org>
Date: Wed Jun 22 19:48:29 2016

Record NQE ECT at main frame

This will help in establishing the correlation between page-level metrics (such as PLT), and ECT.

BUG= 614572 

Review-Url: https://codereview.chromium.org/2076353002
Cr-Commit-Position: refs/heads/master@{#401383}

[modify] https://crrev.com/2052c61710876afbc63a0ff159509f91a152812b/net/nqe/network_quality_estimator.cc
[modify] https://crrev.com/2052c61710876afbc63a0ff159509f91a152812b/net/nqe/network_quality_estimator_unittest.cc
[modify] https://crrev.com/2052c61710876afbc63a0ff159509f91a152812b/tools/metrics/histograms/histograms.xml