Update DDC html libraries to match SDK

pkg/dev_compiler/tool/input_sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart

 /**
  * A client-side key-value store with support for indexes.
  *
  * Many browsers support IndexedDB—a web standard for
  * an indexed database.
  * By storing data on the client in an IndexedDB,
  * a web app gets some advantages, such as faster performance and persistence.
  * To find out which browsers support IndexedDB,
  * refer to [Can I Use?](http://caniuse.com/#feat=indexeddb)
  *
@@ skipping 431 matching lines @@
   @DocsEditable()
   static const EventStreamProvider<VersionChangeEvent> versionChangeEvent =
       const EventStreamProvider<VersionChangeEvent>('versionchange');
 
   @DomName('IDBDatabase.name')
   @DocsEditable()
   final String name;
 
   @DomName('IDBDatabase.objectStoreNames')
   @DocsEditable()
-  @Returns('DomStringList')
+  @Returns('DomStringList|Null')
   @Creates('DomStringList')
   final List<String> objectStoreNames;
 
   @DomName('IDBDatabase.version')
   @DocsEditable()
   @Creates('int|String|Null')
   @Returns('int|String|Null')
-  final Object version;
+  final int version;
 
   @DomName('IDBDatabase.close')
   @DocsEditable()
   void close() native;
 
   @DomName('IDBDatabase.createObjectStore')
   @DocsEditable()
   ObjectStore _createObjectStore(String name, [Map options]) {
     if (options != null) {
       var options_1 = convertDartToNative_Dictionary(options);
@@ skipping 558 matching lines @@
   factory ObjectStore._() {
     throw new UnsupportedError("Not supported");
   }
 
   @DomName('IDBObjectStore.autoIncrement')
   @DocsEditable()
   final bool autoIncrement;
 
   @DomName('IDBObjectStore.indexNames')
   @DocsEditable()
-  @Returns('DomStringList')
+  @Returns('DomStringList|Null')
   @Creates('DomStringList')
   final List<String> indexNames;
 
   @DomName('IDBObjectStore.keyPath')
   @DocsEditable()
   @annotation_Creates_SerializedScriptValue
   final Object keyPath;
 
   @DomName('IDBObjectStore.name')
   @DocsEditable()
@@ skipping 244 matching lines @@
    *
    * See [EventStreamProvider] for usage information.
    */
   @DomName('IDBRequest.successEvent')
   @DocsEditable()
   static const EventStreamProvider<Event> successEvent =
       const EventStreamProvider<Event>('success');
 
   @DomName('IDBRequest.error')
   @DocsEditable()
-  final DomError error;
+  final DomException error;
 
   @DomName('IDBRequest.readyState')
   @DocsEditable()
   final String readyState;
 
   @DomName('IDBRequest.result')
   @DocsEditable()
   dynamic get result => _convertNativeToDart_IDBAny(this._get_result);
   @JSName('result')
   @DomName('IDBRequest.result')
@@ skipping 93 matching lines @@
   @DocsEditable()
   static const EventStreamProvider<Event> errorEvent =
       const EventStreamProvider<Event>('error');
 
   @DomName('IDBTransaction.db')
   @DocsEditable()
   final Database db;
 
   @DomName('IDBTransaction.error')
   @DocsEditable()
-  final DomError error;
+  final DomException error;
 
   @DomName('IDBTransaction.mode')
   @DocsEditable()
   final String mode;
 
   @DomName('IDBTransaction.objectStoreNames')
   @DocsEditable()
   @Experimental() // untriaged
-  @Returns('DomStringList')
+  @Returns('DomStringList|Null')
   @Creates('DomStringList')
   final List<String> objectStoreNames;
 
   @DomName('IDBTransaction.abort')
   @DocsEditable()
   void abort() native;
 
   @DomName('IDBTransaction.objectStore')
   @DocsEditable()
   ObjectStore objectStore(String name) native;
@@ skipping 59 matching lines @@
   @Creates('int|String|Null')
   @Returns('int|String|Null')
   final int newVersion;
 
   @DomName('IDBVersionChangeEvent.oldVersion')
   @DocsEditable()
   @Creates('int|String|Null')
   @Returns('int|String|Null')
   final int oldVersion;
 }