Converting tests over to using event streams.

tests/html/indexeddb_2_test.dart

Index: tests/html/indexeddb_2_test.dart
diff --git a/tests/html/indexeddb_2_test.dart b/tests/html/indexeddb_2_test.dart
index ac41b3d98d4ae0043d9aff0e630cf858ad56dc9a..66fef6c89f7c5fc9ccafef47eb36c299877da655 100644
--- a/tests/html/indexeddb_2_test.dart
+++ b/tests/html/indexeddb_2_test.dart
@@ -32,19 +32,19 @@ testReadWrite(key, value, check,
   step2(e) {
     var transaction = db.transaction(storeName, 'readonly');
     var request = transaction.objectStore(storeName).getObject(key);
-    request.on.success.add(expectAsync1((e) {
+    request.onSuccess.listen(expectAsync1((e) {
       var object = e.target.result;
       db.close();
       check(value, object);
     }));
-    request.on.error.add(fail);
+    request.onError.listen(fail);
   }
 
   step1() {
     var transaction = db.transaction([storeName], 'readwrite');
     var request = transaction.objectStore(storeName).put(value, key);
-    request.on.success.add(expectAsync1(step2));
-    request.on.error.add(fail);
+    request.onSuccess.listen(expectAsync1(step2));
+    request.onError.listen(fail);
   }
 
   initDb(e) {
@@ -52,15 +52,15 @@ testReadWrite(key, value, check,
     if (version != db.version) {
       // Legacy 'setVersion' upgrade protocol.
       var request = db.setVersion('$version');
-      request.on.success.add(
+      request.onSuccess.listen(
         expectAsync1((e) {
           createObjectStore(db);
           var transaction = e.target.result;
-          transaction.on.complete.add(expectAsync1((e) => step1()));
-          transaction.on.error.add(fail);
+          transaction.onComplete.listen(expectAsync1((e) => step1()));
+          transaction.onError.listen(fail);
         })
       );
-      request.on.error.add(fail);
+      request.onError.listen(fail);
     } else {
       step1();
     }
@@ -69,12 +69,12 @@ testReadWrite(key, value, check,
   openDb(e) {
     var request = html.window.indexedDB.open(dbName, version);
     expect(request, isNotNull);
-    request.on.success.add(expectAsync1(initDb));
-    request.on.error.add(fail);
+    request.onSuccess.listen(expectAsync1(initDb));
+    request.onError.listen(fail);
     if (request is idb.OpenDBRequest) {
       // New upgrade protocol.  Old API has no 'upgradeNeeded' and uses
       // setVersion instead.
-      request.on.upgradeNeeded.add((e) {
+      request.onUpgradeNeeded.listen((e) {
           guardAsync(() {
               createObjectStore(e.target.result);
             });
@@ -84,8 +84,8 @@ testReadWrite(key, value, check,
 
   // Delete any existing DB.
   var deleteRequest = html.window.indexedDB.deleteDatabase(dbName);
-  deleteRequest.on.success.add(expectAsync1(openDb));
-  deleteRequest.on.error.add(fail);
+  deleteRequest.onSuccess.listen(expectAsync1(openDb));
+  deleteRequest.onError.listen(fail);
 };