Fix indexeddb_3_test.

tests/html/indexeddb_3_test.dart

 #library('IndexedDB3Test');
 #import('../../lib/unittest/unittest.dart');
 #import('../../lib/unittest/html_config.dart');
 #import('dart:html');
 
 // Read with cursor.
 
 final String DB_NAME = 'Test';
 final String STORE_NAME = 'TEST';
 final String VERSION = '1';
@@ skipping 52 matching lines @@
     IDBRequest cursorRequest = objectStore.openCursor();
     int itemCount = 0;
     int sumKeys = 0;
     int lastKey = null;
     cursorRequest.on.success.add(expectAsync1((e) {
       var cursor = e.target.result;
       if (cursor != null) {
         lastKey = cursor.key;
         itemCount += 1;
         sumKeys += cursor.key;
-        Expect.equals('Item ${cursor.key.toStringAsFixed(0)}', cursor.value);
+        Expect.equals('Item ${cursor.key}', cursor.value);
         cursor.continueFunction();
       } else {
         // Done
         Expect.equals(99, lastKey);
         Expect.equals(100, itemCount);
         Expect.equals((100 * 99) ~/ 2, sumKeys);
       }
     }, count:101));
     cursorRequest.on.error.add(fail('openCursor'));
   }
 
   readAllReversedViaCursor() {
-    IDBTransaction txn = db.transaction(STORE_NAME, IDBTransaction.READ_ONLY);
+    IDBTransaction txn = db.transaction(STORE_NAME, 'readonly');
     IDBObjectStore objectStore = txn.objectStore(STORE_NAME);
-    // TODO: create a IDBKeyRange(0,100)
-    IDBRequest cursorRequest = objectStore.openCursor(null, IDBCursor.PREV);
+    IDBRequest cursorRequest = objectStore.openCursor(new IDBKeyRange.bound(0, 100), 'prev');
     int itemCount = 0;
     int sumKeys = 0;
     int lastKey = null;
     cursorRequest.on.success.add(expectAsync1((e) {
       var cursor = e.target.result;
       if (cursor != null) {
         lastKey = cursor.key;
         itemCount += 1;
         sumKeys += cursor.key;
         Expect.equals('Item ${cursor.key}', cursor.value);
@@ skipping 10 matching lines @@
 }
 
 main() {
   useHtmlConfiguration();
 
   var test_ = new Test();
   test('prepare', test_.start);
   test('readAll1', test_.readAllViaCursor);
   test('readAll2', test_.readAllReversedViaCursor);
 }