The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c205b90bd3a64f18c14fbe299af13c0de237e3cc

commit c205b90bd3a64f18c14fbe299af13c0de237e3cc
Author: billorr <billorr@chromium.org>
Date: Mon Mar 27 19:12:18 2017

Remove/mark obsolete VRPresent UseCounter

This UseCounter is obsolete, so marking it as such to avoid confusion.

BUG= 705116 

Review-Url: https://codereview.chromium.org/2774083002
Cr-Commit-Position: refs/heads/master@{#459846}

[modify] https://crrev.com/c205b90bd3a64f18c14fbe299af13c0de237e3cc/third_party/WebKit/Source/core/frame/UseCounter.h
[modify] https://crrev.com/c205b90bd3a64f18c14fbe299af13c0de237e3cc/tools/metrics/histograms/histograms.xml