Removed HttpRequestProgressEvent

tests/html/xhr_test.dart

Index: tests/html/xhr_test.dart
diff --git a/tests/html/xhr_test.dart b/tests/html/xhr_test.dart
index 989488807a0dceea856de92e58b70aed610500d0..b39ab1cadbc38103b33dfa4f6900f54130a1be01 100644
--- a/tests/html/xhr_test.dart
+++ b/tests/html/xhr_test.dart
@@ -37,12 +37,6 @@ main() {
     expect(xhr.responseText, equals(''));
   }
 
-  group('supported_HttpRequestProgressEvent', () {
-    test('supported', () {
-      expect(HttpRequestProgressEvent.supported, isTrue);
-    });
-  });
-
   group('supported_onProgress', () {
     test('supported', () {
       expect(HttpRequest.supportsProgressEvent, isTrue);
@@ -166,15 +160,6 @@ main() {
       }
     });
 
-    test('HttpRequestProgressEvent', () {
-      var expectation = HttpRequestProgressEvent.supported ?
-          returnsNormally : throws;
-      expect(() {
-        var event = new Event.eventType('XMLHttpRequestProgressEvent', '');
-        expect(event is HttpRequestProgressEvent, isTrue);
-      }, expectation);
-    });
-
     test('overrideMimeType', () {
       var expectation =
           HttpRequest.supportsOverrideMimeType ? returnsNormally : throws;