Move SetLayoutForCurrentDisplays to DisplayManager

BUG=273142
R=mukai@chromium.org
TBR=hongbo.min@intel.com, pkotwicz@chromium.org

Review URL: https://codereview.chromium.org/27257004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228994 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228994