Remove timing dependency to document onload in dialog-close-event.html

third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html

Index: third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html
diff --git a/third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html b/third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html
index def58eae81d3b9014b3394cf7bd6f5188c5c3c31..ca843ec67b452fb5b481c37d6563050e4da9e451 100644
--- a/third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html
+++ b/third_party/WebKit/LayoutTests/fast/dom/HTMLDialogElement/dialog-close-event.html
@@ -7,6 +7,7 @@
 <dialog></dialog>
 <script>
 description("Test that dialog receives a close event upon closing.");
+jsTestIsAsync = true;
 
 document.addEventListener('close', function(event) {
     testFailed("The 'close' event unexpectedly bubbled.");
@@ -16,16 +17,20 @@ closedCount = 0;
 dialog = document.querySelector('dialog');
 dialog.addEventListener('close', function(event) {
     closedCount++;
-    self = this;
-    shouldBe('self', 'dialog');
+    selfDialog = this;

[hiroshige, 2016/09/29 10:46:00]

|self| is renamed because it conflicts with js-test.js.

+    shouldBe('selfDialog', 'dialog');
     shouldBeFalse('dialog.open');
     shouldBeFalse('event.cancelable');
     event.preventDefault();
 
-    if (closedCount < 2) {
+    if (closedCount == 1) {
         dialog.show();
         dialog.close();
-    };
+        // dialog's close event handler shouldn't be called synchronously.
+        shouldBe('closedCount', '1');
+    } else if (closedCount == 2) {
+        finishJSTest();
+    }
 });
 
 dialog.show();
@@ -33,8 +38,9 @@ dialog.close();
 
 // Verify that preventDefault() didn't cancel closing.
 shouldBeFalse('dialog.open');
-// FIXME: This should be removed.
-// shouldBe('closedCount', '2');
+
+// dialog's close event handler shouldn't be called synchronously.
+shouldBe('closedCount', '0');
 </script>
 </body>
 </html>