Update expected test results.

tests/wpt/metadata/css/css-animations/animation-delay-008.html.ini

@@ -0,0 +1,2 @@
+[animation-delay-008.html]
+  expected: TIMEOUT

tests/wpt/metadata/css/css-animations/animation-delay-009.html.ini

@@ -0,0 +1,2 @@
+[animation-delay-009.html]
+  expected: TIMEOUT

tests/wpt/metadata/css/css-animations/animation-delay-010.html.ini

@@ -0,0 +1,2 @@
+[animation-delay-010.html]
+  expected: TIMEOUT

tests/wpt/metadata/css/css-animations/animationevent-interface.html.ini

@@ -1,3 +1,50 @@
 [animationevent-interface.html]
   type: testharness
-  expected: TIMEOUT
+  [the event is an instance of AnimationEvent]
+    expected: FAIL
+
+  [the event inherts from Event]
+    expected: FAIL
+
+  [Missing type argument]
+    expected: FAIL
+
+  [type argument is string]
+    expected: FAIL
+
+  [type argument is null]
+    expected: FAIL
+
+  [event type set to undefined]
+    expected: FAIL
+
+  [animationName has default value of empty string]
+    expected: FAIL
+
+  [elapsedTime has default value of 0.0]
+    expected: FAIL
+
+  [animationName is readonly]
+    expected: FAIL
+
+  [elapsedTime is readonly]
+    expected: FAIL
+
+  [animationEventInit argument is null]
+    expected: FAIL
+
+  [animationEventInit argument is undefined]
+    expected: FAIL
+
+  [animationEventInit argument is empty dictionary]
+    expected: FAIL
+
+  [animationName set to 'sample']
+    expected: FAIL
+
+  [elapsedTime set to 0.5]
+    expected: FAIL
+
+  [AnimationEventInit properties set value]
+    expected: FAIL
+