Deflake storage/domstorage/events tests when run in random order

third_party/WebKit/LayoutTests/storage/domstorage/events/script-tests/basic.js

 description("This is a test to make sure DOM Storage mutations fire StorageEvents that are caught by the event listener set via window.onstorage.");
 
 function test(storageString, callback)
 {
     window.completionCallback = callback;
     window.storage = eval(storageString);
     if (!storage) {
         testFailed(storageString + " DOES NOT exist");
         return;
     }
 
     debug("Testing " + storageString);
 
     storageEventList = new Array();
     evalAndLog("storage.clear()");
     shouldBe("storage.length", "0");
 
-    runAfterNStorageEvents(step1, 0);
+    iframe.onload = onload;
+    iframe.src = "about:blank";
+}
+
+function onload()
+{
+    iframe.contentWindow.onstorage = function (e) {
+        window.parent.storageEventList.push(e);
+    };
+
+    step1();
 }
 
 function step1()
 {
     debug("Reset storage event list");
     evalAndLog("storageEventList = new Array()");
     evalAndLog("storage.setItem('FOO', 'BAR')");
 
     runAfterNStorageEvents(step2, 1);
 }
@@ skipping 43 matching lines @@
     runAfterNStorageEvents(step5, 7);
 }
 
 function step5()
 {
     shouldBe("storageEventList.length", "7");
     shouldBeEqualToString("storageEventList[6].key", "FU");
     shouldBeEqualToString("storageEventList[6].oldValue", "BAR");
     shouldBeNull("storageEventList[6].newValue");
     evalAndLog("storage.clear()");
- 
+
     runAfterNStorageEvents(step6, 8);
 }
 
 function step6()
 {
     shouldBe("storageEventList.length", "8");
     shouldBeNull("storageEventList[7].key");
     shouldBeNull("storageEventList[7].oldValue");
     shouldBeNull("storageEventList[7].newValue");
- 
+
     completionCallback();
 }
 
 testStorages(test);
 
 var successfullyParsed = true;