Clean up WheelEvent

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index 7774b4d4d5ebb247dbe0a59b18e9300b17ea8ab2..d8e1058d1cff286d0e1bed7a16cf083db27ef52e 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -2,7 +2,6 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-event_test: Skip  # Issue 1996
 interactive_test: Skip # Must be run manually.
 dromaeo_smoke_test: Skip # Issue 14521, 8257
 cross_frame_test: Skip # Test reloads itself. Issue 18558
@@ -297,7 +296,6 @@ indexeddb_1_test/functional: Skip # Times out. Issue 21433
 indexeddb_2_test: RuntimeError # Issue 21433
 indexeddb_4_test: RuntimeError # Issue 21433
 indexeddb_5_test: RuntimeError # Issue 21433
-wheelevent_test: RuntimeError # Issue 21434, 12958
 js_test: RuntimeError # Issue 21434
 
 [ $runtime == opera ]
@@ -343,6 +341,7 @@ xhr_test/xhr: Pass, Fail # Issue 11602
 dart_object_local_storage_test: Skip  # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
 webgl_1_test: Pass, Fail   # Issue 8219
 canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Fail # Firefox does not like dataUrl videos for drawImage
+text_event_test: Fail # Issue 17893
 
 # Firefox Feature support statuses-
 # All changes should be accompanied by platform support annotation changes.
@@ -384,9 +383,6 @@ js_interop_1_test: Skip            # Test cannot run under CSP restrictions (tim
 js_test: Skip                      # Test cannot run under CSP restrictions (times out).
 postmessage_structured_test: Skip  # Test cannot run under CSP restrictions (times out).
 
-[ $compiler == dart2js && ($runtime == drt || $runtime ==chrome) ]
-wheelevent_test: Fail # Issue 12958
-
 [ $compiler == dart2js &&  $runtime == chrome]
 svgelement_test/supported_altGlyph: RuntimeError # Issue 23144