Update WPT web-animations test expectations

third_party/WebKit/LayoutTests/external/wpt/web-animations/interfaces/Animation/finished-expected.txt

Index: third_party/WebKit/LayoutTests/external/wpt/web-animations/interfaces/Animation/finished-expected.txt
diff --git a/third_party/WebKit/LayoutTests/external/wpt/web-animations/interfaces/Animation/finished-expected.txt b/third_party/WebKit/LayoutTests/external/wpt/web-animations/interfaces/Animation/finished-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f6c6decf62d2f0df71c95b1b554acb95f4a99439
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/web-animations/interfaces/Animation/finished-expected.txt
@@ -0,0 +1,25 @@
+This is a testharness.js-based test.
+PASS Test pausing then playing does not change the finished promise 
+PASS Test restarting a finished animation 
+PASS Test restarting a reversed finished animation 
+PASS Test redundant finishing of animation 
+PASS Finished promise does not resolve when paused 
+PASS Finished promise does not resolve when pause-pending 
+PASS The finished promise is fulfilled with its Animation 
+PASS finished promise is rejected when an animation is cancelled by calling cancel() 
+PASS cancelling an already-finished animation replaces the finished promise 
+FAIL cancelling an idle animation still replaces the finished promise assert_not_equals: A redundant call to cancel() should still generate a new finished promise got disallowed value object "[object Promise]"
+FAIL Test finished promise changes for animation duration changes assert_false: shortening of the animation duration should resolve the finished promise expected false got true
+PASS Test finished promise changes when playbackRate == 0 
+PASS Test finished promise resolves when reaching to the natural boundary. 
+PASS Test finished promise changes when a prior finished promise resolved and the animation falls out finished state 
+PASS Test no new finished promise generated when finished state is checked asynchronously 
+PASS Test new finished promise generated when finished state is checked synchronously 
+FAIL Test synchronous finished promise resolved even if finished state is changed soon assert_true: Animation.finished should be resolved even if the finished state is changed soon expected true got false
+FAIL Test synchronous finished promise resolved even if asynchronous finished promise happens just before synchronous promise assert_true: Animation.finished should be resolved soon after finish() is called even if there are other asynchronous promises just before it expected true got false
+PASS Test finished promise is not resolved when the animation falls out finished state immediately 
+FAIL Test finished promise is not resolved once the animation falls out finished state even though the current finished promise is generated soon after animation state became finished assert_unreached: Animation.finished should not be resolved Reached unreachable code
+PASS Finished promise should be resolved after the ready promise is resolved 
+PASS Finished promise should be rejected after the ready promise is rejected 
+Harness: the test ran to completion.
+