Returns example content for dialog tests.
function ajax_test_dialog_contents() {
// This is a regular render array; the keys do not have special meaning.
$content = array(
'content' => array(
'#markup' => 'Example message',
),
'cancel' => array(
'#type' => 'link',
'#title' => 'Cancel',
'#href' => '',
'#attributes' => array(
// This is a special class to which JavaScript assigns dialog closing
// behavior.
'class' => array(
'dialog-cancel',
),
),
),
);
return $content;
}