Merge "Update doc for AppHandlePositionCallback to say taskId." into main

     * that was passed in when adding this listener.

     * See [AppHandles.addListener]

     *

     * @param handles The new map of [AppHandleIdentifier] objects key'd by displayId.

     *                Never null, may be empty.

     * @param handles The new map of [AppHandleIdentifier] objects key'd by taskId.

     *                TODO(b/417194560): Make AppHandle key'd on both taskId and displayId.

     *                The map is never null, may be empty.

     */

    fun onAppHandlesUpdated(handles: Map<Int, AppHandleIdentifier>)

}