GitLab

Adds helper for computing whether a number is power of two.

Change-Id: Ifd7e01ec1aad644fd9c6ac78600edd013076c9fb
Reviewed-on: https://chromium-review.googlesource.com/1065960
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560988}