Calendar picker won't jump to selection if only part of the selection is visible.

The condition for the calendar picker to jump to the selection was wrong.

BUG=244167

Review URL: https://chromiumcodereview.appspot.com/15951009

git-svn-id: svn://svn.chromium.org/blink/trunk@158090 bbb929c8-8fbe-4397-9dbb-9b2b20218538