GitLab

Incorporate printer list from cloudprint and modify cloud print page to match
mocks, adding necessary functionality along the way.

BUG=286157

Review URL: https://chromiumcodereview.appspot.com/23903011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221887 0039d316-1c4b-4281-b951-d872f2087c98