Fix tests: window.onload = setTimeout.

This is similar to a previous CL:
https://chromium-review.googlesource.com/c/chromium/src/+/1051908

All of these tests are using:
window.onload = setTimeout([...], 0);
The issue is that setTimeout is executed immediately instead of on load.

Bug: 831155
Change-Id: I913b8c04de5d583ef87c91dfc23d4ba8be8ba642
Reviewed-on: https://chromium-review.googlesource.com/1055391Reviewed-by: Nate Chapin <japhet@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558229}

third_party/WebKit/LayoutTests/http/tests/history/replaceState-then-fragment.html

@@ -4,14 +4,16 @@ if (window.testRunner) {
     testRunner.waitUntilDone();
 }
 
-window.onload = setTimeout(function() {
-    window.addEventListener('hashchange', function() {
-        document.body.appendChild(document.createTextNode(history.state == "FAIL" ? "FAIL" : "PASS"));
-        if (window.testRunner)
-            testRunner.notifyDone();
-    });
+window.onload = function() {
+    setTimeout(function() {
+        window.addEventListener('hashchange', function() {
+            document.body.appendChild(document.createTextNode(history.state == "FAIL" ? "FAIL" : "PASS"));
+            if (window.testRunner)
+                testRunner.notifyDone();
+        });
 
-    history.replaceState("FAIL", null);
-    location.href = "#test";
-}, 0);
+        history.replaceState("FAIL", null);
+        location.href = "#test";
+    }, 0);
+}
 </script>

third_party/WebKit/LayoutTests/http/tests/history/resources/push-state-in-grandchild-grandchild.html

 <script>
-window.onload = setTimeout(function() {
-    history.pushState("pushState", "", "#pushState");
-    top.continueTest();
-}, 0);
+  window.onload = function() {
+    setTimeout(function() {
+      history.pushState("pushState", "", "#pushState");
+      top.continueTest();
+    }, 0);
+  }
 </script>

third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/async-xhr-revalidate-after-sync-xhr.html

@@ -10,17 +10,19 @@ const url  = '/cache/resources/etag-200.php?' +
 xhr1 = new XMLHttpRequest();
 xhr2SendIsReturned = false;
 xhr1.open('GET', url, false);
-xhr1.onload = setTimeout(function() {
-  xhr2 = new XMLHttpRequest();
-  xhr2.open('GET', url, true);
-  xhr2.onload = function() {
-    shouldBeTrue("xhr2SendIsReturned");
-    shouldNotBe("xhr1.responseText", "xhr2.responseText");
-    finishJSTest();
-  }; 
-  xhr2.send();
-  xhr2SendIsReturned = true;
-}, 0);
+xhr1.onload = function() {
+  setTimeout(function() {
+    xhr2 = new XMLHttpRequest();
+    xhr2.open('GET', url, true);
+    xhr2.onload = function() {
+      shouldBeTrue("xhr2SendIsReturned");
+      shouldNotBe("xhr1.responseText", "xhr2.responseText");
+      finishJSTest();
+    };
+    xhr2.send();
+    xhr2SendIsReturned = true;
+  }, 0);
+}
 xhr1.send();
 </script>
 </body>

third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-xhr-revalidate-after-async-xhr-expected.txt

-CONSOLE WARNING: line 15: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
+CONSOLE WARNING: line 16: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
 Sync XHR should not turn async due to revalidation.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-xhr-revalidate-after-async-xhr.html

@@ -10,17 +10,19 @@ const url  = '/cache/resources/etag-200.php?' +
 xhr1 = new XMLHttpRequest();
 xhr2SendIsReturned = false;
 xhr1.open('GET', url, true);
-xhr1.onload = setTimeout(function() {
-  xhr2 = new XMLHttpRequest();
-  xhr2.open('GET', url, false);
-  xhr2.onload = function() {
-    shouldBeFalse("xhr2SendIsReturned");
-    shouldNotBe("xhr1.responseText", "xhr2.responseText");
-    finishJSTest();
-  }; 
-  xhr2.send();
-  xhr2SendIsReturned = true;
-}, 0);
+xhr1.onload = function() {
+  setTimeout(function() {
+    xhr2 = new XMLHttpRequest();
+    xhr2.open('GET', url, false);
+    xhr2.onload = function() {
+      shouldBeFalse("xhr2SendIsReturned");
+      shouldNotBe("xhr1.responseText", "xhr2.responseText");
+      finishJSTest();
+    };
+    xhr2.send();
+    xhr2SendIsReturned = true;
+  }, 0);
+}
 xhr1.send();
 </script>
 </body>