chromeos and touch: pass on the touch-devices switch after login.
chromeos and touch: pass on the touch-devices switch after login.

BUG=none
TEST=chrome receives touch events after logging in on chromeos

Review URL: http://codereview.chromium.org/5726006

git-svn-id: http://src.chromium.org/svn/trunk/src@69135 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 8849067b92f2d0364033513c1159ed31af553fc5
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser