[dart:html] rename register to registerElement per spec

tests/html/custom_elements_test.dart

 // Copyright (c) 2013, 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.
 
 library custom_elements_test;
 import 'dart:async';
 import 'dart:html';
 import 'package:unittest/html_individual_config.dart';
 import 'package:unittest/unittest.dart';
 import 'utils.dart';
@@ skipping 28 matching lines @@
 class NotAnElement {}
 
 main() {
   useHtmlIndividualConfiguration();
 
   setUp(() => customElementsReady);
 
   group('register', () {
     test('register', () {
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
 
       var element = new Element.tag(tag);
       expect(element, isNotNull);
       expect(element is CustomType, isTrue);
       expect(element.createdCalled, isTrue);
     });
 
     test('register twice', () {
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
       expect(() {
-        document.register(tag, CustomType);
+        document.registerElement(tag, CustomType);
       }, throws, reason: 'Cannot register a tag more than once.');
 
       var newTag = nextTag;
-      document.register(newTag, CustomType);
+      document.registerElement(newTag, CustomType);
 
       var element = new Element.tag(newTag);
       expect(element, isNotNull);
       expect(element is CustomType, isTrue);
     });
 
     test('register null', () {
       expect(() {
-        document.register(nextTag, null);
+        document.registerElement(nextTag, null);
       }, throws, reason: 'Cannot register a null type.');
     });
 
     test('register native', () {
       expect(() {
-        document.register(nextTag, BodyElement);
+        document.registerElement(nextTag, BodyElement);
       }, throws, reason: 'Cannot register a native element.');
     });
 
     test('register non-element', () {
       expect(() {
-        document.register(nextTag, NotAnElement);
+        document.registerElement(nextTag, NotAnElement);
       }, throws, reason: 'Cannot register a non-element.');
     });
   });
 
   // TODO(vsm): Modify this test once we agree on the proper semantics.
   /*
   group('preregister', () {
 
     test('pre-registration construction', () {
       var tag = nextTag;
       var dom = new Element.html('<div><$tag></$tag></div>');
 
       var preElement = dom.children[0];
       expect(preElement, isNotNull);
       expect(preElement is HtmlElement, isTrue);
       expect(preElement is CustomType, isFalse);
       var firedOnPre = false;
       preElement.onFocus.listen((_) {
         firedOnPre = true;
       });
 
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
       upgradeCustomElements(dom);
 
       var postElement = dom.children[0];
       expect(postElement, isNotNull);
       expect(postElement is CustomType, isTrue);
       expect(postElement.createdCalled, isTrue);
 
       // Element from first query remains an UnknownElement.
       expect(preElement is HtmlElement, isTrue);
       expect(preElement.parent, dom);
       expect(dom.children.length, 1);
 
       var firedOnPost = false;
       postElement.onFocus.listen((_) {
         firedOnPost = true;
       });
       // Event handlers persist on old and new element.
       postElement.dispatchEvent(new Event('focus'));
       expect(firedOnPre, isTrue);
       expect(firedOnPost, isTrue);
     });
   });*/
 
   group('innerHtml', () {
     test('query', () {
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
       var element = new DivElement();
       element.setInnerHtml('<$tag></$tag>',
           treeSanitizer: new NullTreeSanitizer());
           upgradeCustomElements(element);
       document.body.nodes.add(element);
       var queried = query(tag);
 
       expect(queried, isNotNull);
       expect(queried is CustomType, isTrue);
       expect(queried.createdCalled, isTrue);
     });
 
     test('query id', () {
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
       var element = new DivElement();
       element.setInnerHtml('<$tag id="someid"></$tag>',
           treeSanitizer: new NullTreeSanitizer());
           upgradeCustomElements(element);
       document.body.nodes.add(element);
       var queried = query('#someid');
 
       expect(queried, isNotNull);
       expect(queried is CustomType, isTrue);
       expect(queried.id, "someid");
     });
   });
 
   group('lifecycle', () {
     test('created', () {
       int oldCount = customCreatedCount;
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
       var element = new DivElement();
       element.setInnerHtml('<$tag></$tag>',
           treeSanitizer: new NullTreeSanitizer());
       upgradeCustomElements(element);
       document.body.nodes.add(element);
       expect(customCreatedCount, oldCount + 1);
     });
   });
 
   group('mixins', () {
     test('can invoke mixin methods', () {
       var tag = nextTag;
-      document.register(tag, CustomType);
+      document.registerElement(tag, CustomType);
 
       var element = new Element.tag(tag);
       element.invokeMixinMethod();
       expect(element.mixinMethodCalled, isTrue);
     });
   });
 }