The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8c6639a24a1df1f7e78ab630419e41048778b785

commit 8c6639a24a1df1f7e78ab630419e41048778b785
Author: bauerb <bauerb@chromium.org>
Date: Tue Jan 17 23:50:17 2017

Add chrome://flags entry to enable the standalone content suggestions UI.

BUG= 681869 

Review-Url: https://codereview.chromium.org/2636533003
Cr-Commit-Position: refs/heads/master@{#444193}

[modify] https://crrev.com/8c6639a24a1df1f7e78ab630419e41048778b785/chrome/app/generated_resources.grd
[modify] https://crrev.com/8c6639a24a1df1f7e78ab630419e41048778b785/chrome/browser/about_flags.cc
[modify] https://crrev.com/8c6639a24a1df1f7e78ab630419e41048778b785/tools/metrics/histograms/histograms.xml