Update status for html and lib tests.

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index 1fa60824186cb90cb8b3d1c1edae0fade06942ac..510b2fa3351c12b3b43d4fa19d8024f80267ad10 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -65,6 +65,7 @@ request_animation_frame_test: Skip # Times out, and also passes while taking 4.0
 fileapi_test/fileEntry: Pass, RuntimeError # Issue 20488
 fileapi_test/getFile: Pass, RuntimeError # Issue 20488
 indexeddb_5_test: Pass, RuntimeError # Issue 21262
+native_gc_test: Pass, Slow
 
 [ $compiler == none && $runtime == drt && $system == windows ]
 worker_test/functional: Pass, Crash # Issue 9929.
@@ -355,6 +356,10 @@ postmessage_structured_test: Skip  # Test cannot run under CSP restrictions (tim
 [ $compiler == dart2js && ($runtime == drt || $runtime ==chrome) ]
 wheelevent_test: Fail # http://dartbug.com/12958
 
+[ $compiler == dart2js &&  $runtime == chrome && $system == windows ]
+css_test/functional: Fail # Issue 21710
+css_test/supportsPointConversions: Fail # Issue 21710
+
 [ $runtime == dartium && ($system == macos || $system == windows || $system == linux)]
 # Desktop operation systems do not support touch events on chrome 34 dartium.
 touchevent_test/supported: Fail