Revert of Throw TypeError when addEventListener or removeEventListener are called

LayoutTests/fast/dom/event-target-arguments-expected.txt

Index: LayoutTests/fast/dom/event-target-arguments-expected.txt
diff --git a/LayoutTests/fast/dom/event-target-arguments-expected.txt b/LayoutTests/fast/dom/event-target-arguments-expected.txt
index 86209f536361632381712ca672d5be53db393e6c..46d86e5dfb07ad148a8ab18d1177f0550b19871b 100644
--- a/LayoutTests/fast/dom/event-target-arguments-expected.txt
+++ b/LayoutTests/fast/dom/event-target-arguments-expected.txt
@@ -5,37 +5,37 @@
 
 Signature:
 void addEventListener(DOMString type, EventListener listener, optional boolean useCapture)
-PASS document.addEventListener() threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 0 present..
-PASS document.addEventListener("foo") threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.addEventListener() is undefined
+PASS document.addEventListener("foo") is undefined
 PASS document.addEventListener("foo", listener) did not throw exception.
 PASS document.addEventListener("", listener) did not throw exception.
 PASS document.addEventListener("", function(){}) did not throw exception.
 PASS document.addEventListener("bar", listener, false) did not throw exception.
 PASS document.addEventListener("bar", listener, true) did not throw exception.
-PASS document.addEventListener(null) threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.addEventListener(null) is undefined
 PASS document.addEventListener(null, listener) did not throw exception.
 PASS document.addEventListener("foo", null) is undefined
 PASS document.addEventListener("zork", listener, null) did not throw exception.
-PASS document.addEventListener(undefined) threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
-PASS document.addEventListener(undefined, listener) did not throw exception.
+PASS document.addEventListener(undefined) is undefined
+PASS document.addEventListener(undefined, listener) is undefined
 PASS document.addEventListener("foo", undefined) is undefined
 PASS document.addEventListener("zork", listener, undefined) did not throw exception.
 
 Signature:
 void removeEventListener(DOMString type, EventListener listener, optional boolean useCapture)
-PASS document.removeEventListener() threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 0 present..
-PASS document.removeEventListener("foo") threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.removeEventListener() is undefined
+PASS document.removeEventListener("foo") is undefined
 PASS document.removeEventListener("foo", listener) did not throw exception.
 PASS document.removeEventListener("foo", listener, true) did not throw exception.
 PASS document.removeEventListener("bar", listener, false) did not throw exception.
 PASS document.removeEventListener("bar", listener, false) did not throw exception.
 PASS document.removeEventListener("bar", listener, true) did not throw exception.
-PASS document.removeEventListener(null) threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.removeEventListener(null) is undefined
 PASS document.removeEventListener(null, listener) did not throw exception.
 PASS document.removeEventListener("foo", null) is undefined
 PASS document.removeEventListener("zork", listener, null) did not throw exception.
-PASS document.removeEventListener(undefined) threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
-PASS document.removeEventListener(undefined, listener) did not throw exception.
+PASS document.removeEventListener(undefined) is undefined
+PASS document.removeEventListener(undefined, listener) is undefined
 PASS document.removeEventListener("foo", undefined) is undefined
 PASS document.removeEventListener("zork", listener, undefined) did not throw exception.
 PASS successfullyParsed is true