When running in immersive mode, the system print dialog opens 
modally on the desktop, causing the browser to appear hung 
with no indication to the user that it is waiting on input 
from a modal dialog on the desktop.

This patch hides the "Print with system dialog..." link in 
Print Preview iff metro.

BUG=291345

Review URL: https://codereview.chromium.org/25033006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227680 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227680