chrome.accessibilityPrivate.getAlertsForTab =
function(tabId, callback) {};
+/**
+ * @param {Array.<{left: number, top: number, width: number, height: number}>}
+ * rects The bounding rects to draw focus ring(s) around, in global
+ * screen coordinates.
+ */
+chrome.accessibilityPrivate.setFocusRing = function(rects) {
+};
+
/** @type ChromeEvent */
chrome.accessibilityPrivate.onWindowOpened;