update elements and fix some bugs

test/paper_tooltip_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 @TestOn('browser')
 library polymer_elements.test.paper_tooltip_test;
 
 import 'dart:async';
 import 'dart:html';
 import 'package:polymer/polymer.dart';
 import 'package:polymer_elements/paper_tooltip.dart';
@@ skipping 232 matching lines @@
       focus(target);
       expect(isHidden(actualTooltip), isFalse);
 
       tooltip.on['neon-animation-finish'].take(1).listen((_) {
         expect(isHidden(actualTooltip), isTrue);
         done.complete();
       });
       blur(target);
 
       return done.future;
-    }, skip: 'https://github.com/dart-lang/polymer_elements/issues/52');
+    });
 
     test('tooltip unlistens to target on detach', () {
       HtmlElement f = fixture('basic');
       DivElement target = f.querySelector('#target');
       PaperTooltip tooltip = f.querySelector('paper-tooltip');
 
       sinon.spy(tooltip.jsElement, 'show');
 
       focus(target);
       expect(tooltip.jsElement['show']['callCount'], equals(1));
 
       focus(target);
       expect(tooltip.jsElement['show']['callCount'], equals(2));
 
       tooltip.remove();
 
       return wait(200).then((_) {
         // No more listener means no more calling show.
         focus(target);
         expect(tooltip.jsElement['show']['callCount'], equals(2));
       });
     });
   });
   group('tooltip is inside a custom element', () {
-    HtmlElement f;
+    TestButton f;
     PaperTooltip tooltip;
     HtmlElement target;
 
     setUp(() {
       f = fixture('custom');
-      target = f.querySelector('#button');
-      tooltip = f.querySelector('paper-tooltip');
+      target = f.$['button'];
+      tooltip = f.$['buttonTooltip'];
     });
 
     test('tooltip is shown when target is focused', () {
       HtmlElement actualTooltip = tooltip.querySelector('#tooltip');
       expect(isHidden(actualTooltip), isTrue);
 
       focus(target);
       expect(isHidden(actualTooltip), isFalse);
     });
 
     test('tooltip is positioned correctly', () {
       HtmlElement actualTooltip = tooltip.querySelector('#tooltip');
       expect(isHidden(actualTooltip), isTrue);
 
       focus(target);
       expect(isHidden(actualTooltip), isFalse);
 
       Rectangle divRect = target.getBoundingClientRect();
       expect(divRect.width, equals(100));
       expect(divRect.height, equals(20));
 
       Rectangle contentRect = tooltip.getBoundingClientRect();
-      expect(contentRect.width, equals(70));
+      expect(contentRect.width, equals(30));
       expect(contentRect.height, equals(30));
 
       // The target div width is 100, and the tooltip width is 70, and
       // it's centered. The height of the target div is 20, and the
       // tooltip is 14px below.
-      expect(contentRect.left, equals((100 - 70) / 2));
+      expect(contentRect.left, equals((100 - 30) / 2));
       expect(contentRect.top, equals(20 + 14));
 
       // Also check the math, just in case.
       expect(contentRect.left, equals((divRect.width - contentRect.width) / 2));
       expect(contentRect.top, equals(divRect.height + tooltip.offset));
     });
   });
 
   group('a11y', () {
     test('has aria role "tooltip"', () {
       HtmlElement f = fixture('basic');
       PaperTooltip tooltip = f.querySelector('paper-tooltip');
 
       expect(tooltip.getAttribute('role'), equals('tooltip'));
     });
   });
+  
+  // TODO(jakemac): investigate these
+  //
+  // a11ySuite('basic');
+  // a11ySuite('fitted');
+  // a11ySuite('no-text');
+  // a11ySuite('dynamic');
+  // a11ySuite('custom');
 }