update elements and fix some bugs

lib/google_map_marker.dart

 // DO NOT EDIT: auto-generated with `pub run custom_element_apigen:update`
 
 /// Dart API for the polymer element `google_map_marker`.
 @HtmlImport('google_map_marker_nodart.html')
 library polymer_elements.lib.src.google_map.google_map_marker;
 
 import 'dart:html';
 import 'dart:js' show JsArray, JsObject;
 import 'package:web_components/web_components.dart';
 import 'package:polymer_interop/polymer_interop.dart';
@@ skipping 22 matching lines @@
 ///
 /// <b>Example</b> - hide a marker:
 ///
 ///     <google-map-marker latitude="37.77493" longitude="-122.41942"
 ///         hidden></google-map-marker>
 @CustomElementProxy('google-map-marker')
 class GoogleMapMarker extends HtmlElement with CustomElementProxyMixin, PolymerBase {
   GoogleMapMarker.created() : super.created();
   factory GoogleMapMarker() => new Element.tag('google-map-marker');
 
+  /// A animation for the marker. "DROP" or "BOUNCE". See
+  /// https://developers.google.com/maps/documentation/javascript/examples/marker-animations.
+  String get animation => jsElement[r'animation'];
+  set animation(String value) { jsElement[r'animation'] = value; }
+
   /// When true, marker *click events are automatically registered.
   bool get clickEvents => jsElement[r'clickEvents'];
   set clickEvents(bool value) { jsElement[r'clickEvents'] = value; }
 
   /// Image URL for the marker icon.
   get icon => jsElement[r'icon'];
   set icon(value) { jsElement[r'icon'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
 
   /// A Google Map Infowindow object.
   get info => jsElement[r'info'];
@@ skipping 12 matching lines @@
   set map(value) { jsElement[r'map'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
 
   /// A Google Maps marker object.
   get marker => jsElement[r'marker'];
   set marker(value) { jsElement[r'marker'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
 
   /// When true, marker mouse* events are automatically registered.
   bool get mouseEvents => jsElement[r'mouseEvents'];
   set mouseEvents(bool value) { jsElement[r'mouseEvents'] = value; }
 
+  /// Specifies whether the InfoWindow is open or not
+  bool get open => jsElement[r'open'];
+  set open(bool value) { jsElement[r'open'] = value; }
+
   /// Z-index for the marker icon.
   num get zIndex => jsElement[r'zIndex'];
   set zIndex(num value) { jsElement[r'zIndex'] = value; }
 }