GitLab

This works around a bug in Chrome whereby scroll-bars are added unnecessarily.

BUG=252796,240772

Review URL: https://chromiumcodereview.appspot.com/17288017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@207935 0039d316-1c4b-4281-b951-d872f2087c98