Make initEvent's first argument non-optional

third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-initEvent-expected.txt

Index: third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-initEvent-expected.txt
diff --git a/third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-initEvent-expected.txt b/third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-initEvent-expected.txt
deleted file mode 100644
index 742badeebf788aae290bedd30f8e67d1d32c4a66..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-initEvent-expected.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-This is a testharness.js-based test.
-PASS Properties of initEvent(type, true, true) 
-PASS Properties of initEvent(type, true, false) 
-PASS Properties of initEvent(type, false, true) 
-PASS Properties of initEvent(type, false, false) 
-PASS Calling initEvent multiple times (getting type). 
-PASS Calling initEvent multiple times (not getting type). 
-PASS Calling initEvent must not have an effect during dispatching. 
-PASS Calling initEvent must unset the stop propagation flag. 
-PASS Calling initEvent must unset the stop immediate propagation flag. 
-PASS Calling initEvent during propagation. 
-FAIL First parameter to initEvent should be mandatory. assert_throws: function "function () {
-    e.initEvent()
-  }" did not throw
-PASS Tests initEvent's default parameter values. 
-Harness: the test ran to completion.
-