Move some more WM functionality down into ash.

http://crbug.com/108457
TEST=none
TBR=sky
Review URL: http://codereview.chromium.org/9035001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@115721 0039d316-1c4b-4281-b951-d872f2087c98
58 files changed