Dartifying dart:html type names.

tests/html/indexeddb_3_test.dart

 library IndexedDB3Test;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
 import 'dart:indexed_db';
 
 // Read with cursor.
 
 const String DB_NAME = 'Test';
 const String STORE_NAME = 'TEST';
 const int VERSION = 1;
 
 class Test {
   fail(message) => (e) {
     guardAsync(() {
       expect(false, isTrue, reason: 'IndexedDB failure: $message');
     });
   };
 
   _createObjectStore(db) {
     try {
       // Nuke object store if it already exists.
       db.deleteObjectStore(STORE_NAME);
     }
     on DatabaseException catch(e) { }  // Chrome
-    on DOMException catch(e) { }          // Firefox
+    on DomException catch(e) { }          // Firefox
     db.createObjectStore(STORE_NAME);
   }
 
   var db;
 
   _openDb(afterOpen()) {
     var request = window.indexedDB.open(DB_NAME, VERSION);
     if (request is OpenDBRequest) {
       // New upgrade protocol. FireFox 15, Chrome 24, hopefully IE10.
       request.on.success.add(expectAsync1((e) {
@@ skipping 104 matching lines @@
 }
 
 main() {
   useHtmlConfiguration();
 
   var test_ = new Test();
   test('prepare', test_.setupDb);
   test('readAll1', test_.readAllViaCursor);
   test('readAll2', test_.readAllReversedViaCursor);
 }