Converting tests over to using event streams.

tests/html/indexeddb_4_test.dart

Index: tests/html/indexeddb_4_test.dart
diff --git a/tests/html/indexeddb_4_test.dart b/tests/html/indexeddb_4_test.dart
index d8a134147e6a53d9e8a256d6b164c8200957af32..6704af095d14de3fcac77dc88e5a53d00f13d78a 100644
--- a/tests/html/indexeddb_4_test.dart
+++ b/tests/html/indexeddb_4_test.dart
@@ -32,43 +32,43 @@ class Test {
     var request = window.indexedDB.open(DB_NAME, VERSION);
     if (request is OpenDBRequest) {
       // New upgrade protocol.
-      request.on.success.add(expectAsync1((e) {
+      request.onSuccess.listen(expectAsync1((e) {
             db = e.target.result;
             afterOpen();
           }));
-      request.on.upgradeNeeded.add((e) {
+      request.onUpgradeNeeded.listen((e) {
           guardAsync(() {
               _createObjectStore(e.target.result);
             });
         });
-      request.on.error.add(fail('open'));
+      request.onError.listen(fail('open'));
     } else {
       // Legacy setVersion upgrade protocol.
-      request.on.success.add(expectAsync1((e) {
+      request.onSuccess.listen(expectAsync1((e) {
             db = e.target.result;
             if (db.version != '$VERSION') {
               var setRequest = db.setVersion('$VERSION');
-              setRequest.on.success.add(
+              setRequest.onSuccess.listen(
                   expectAsync1((e) {
                       _createObjectStore(db);
                       var transaction = e.target.result;
-                      transaction.on.complete.add(
+                      transaction.onComplete.listen(
                           expectAsync1((e) => afterOpen()));
-                      transaction.on.error.add(fail('Upgrade'));
+                      transaction.onError.listen(fail('Upgrade'));
                     }));
-              setRequest.on.error.add(fail('setVersion error'));
+              setRequest.onError.listen(fail('setVersion error'));
             } else {
               afterOpen();
             }
           }));
-      request.on.error.add(fail('open'));
+      request.onError.listen(fail('open'));
     }
   }
 
   _createAndOpenDb(afterOpen()) {
     var request = window.indexedDB.deleteDatabase(DB_NAME);
-    request.on.success.add(expectAsync1((e) { _openDb(afterOpen); }));
-    request.on.error.add(fail('delete old Db'));
+    request.onSuccess.listen(expectAsync1((e) { _openDb(afterOpen); }));
+    request.onError.listen(fail('delete old Db'));
   }
 
   writeItems(int index) {
@@ -76,11 +76,11 @@ class Test {
       var transaction = db.transaction([STORE_NAME], 'readwrite');
       var request = transaction.objectStore(STORE_NAME)
           .put('Item $index', index);
-      request.on.success.add(expectAsync1((e) {
+      request.onSuccess.listen(expectAsync1((e) {
           writeItems(index + 1);
         }
       ));
-      request.on.error.add(fail('put'));
+      request.onError.listen(fail('put'));
     }
   }
 
@@ -93,7 +93,7 @@ class Test {
     int itemCount = 0;
     int firstKey = null;
     int lastKey = null;
-    cursorRequest.on.success.add(expectAsync1((e) {
+    cursorRequest.onSuccess.listen(expectAsync1((e) {
       var cursor = e.target.result;
       if (cursor != null) {
         if (firstKey == null) firstKey = cursor.key;
@@ -114,7 +114,7 @@ class Test {
     },
     count: 1 + ((expectedFirst == null) ?
            0 : (expectedLast - expectedFirst + 1))));
-    cursorRequest.on.error.add(fail('openCursor'));
+    cursorRequest.onError.listen(fail('openCursor'));
   }
 
   only1() => testRange(new KeyRange.only(55), 55, 55);