Disabling shelf auto hide menu for Ash on Windows.

R=skuhne
CC=cpu,ananta
BUG=292864

Review URL: https://codereview.chromium.org/63263003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234380 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234380