The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/faf9214134a3262cf35553521f71fa60207602ed

commit faf9214134a3262cf35553521f71fa60207602ed
Author: ryansturm <ryansturm@chromium.org>
Date: Thu May 11 19:07:47 2017

Add an about:flag to enable client-side LoFi

This allows users to turn client-side LoFi on android.

BUG= 720920 

Review-Url: https://codereview.chromium.org/2870263004
Cr-Commit-Position: refs/heads/master@{#471030}

[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/chrome/browser/about_flags.cc
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/chrome/browser/flag_descriptions.cc
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/chrome/browser/flag_descriptions.h
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/components/previews/core/previews_experiments.cc
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/components/previews/core/previews_experiments_unittest.cc
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/components/previews/core/previews_features.cc
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/components/previews/core/previews_features.h
[modify] https://crrev.com/faf9214134a3262cf35553521f71fa60207602ed/tools/metrics/histograms/enums.xml