Temporarily suppress some timing tests on Chrome

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index c873ade3158a4db0c93aa29b0713a37765e4cb27..e37d7be43f2827cdde192b0d019350195d4b3e3f 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -101,6 +101,8 @@ touchevent_test/supported: Fail # Touch events are only supported on touch devic
 xhr_cross_origin_test: Pass, Fail # Issue 11884
 xhr_test: Pass, Fail # Issue 11884
 audiocontext_test/functional: Skip # Renderer crash. Issue 22327
+element_animate_test/omit_timing: Skip # Timing out inexplicably. Temporarily suppressing (alanknight)
+element_animate_test/timing_dict: Skip # Timing out inexplicably. Temporarily suppressing (alanknight)
 
 [ ($runtime == chrome || $runtime == drt) && $compiler == dart2js && $checked ]
 notification_test/constructors: Fail # Issue 22842