Update web-platform-tests.

third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html

Index: third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html b/third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html
index c57c7e9b255653e1ef6e08036f74628006a20ecd..6fc9701012b89c17f9557439af297f2f81665823 100644
--- a/third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html
+++ b/third_party/WebKit/LayoutTests/imported/wpt/dom/events/Event-propagation.html
@@ -13,10 +13,11 @@ function testPropagationFlag(ev, expected, desc) {
     var callback = function() { called = true };
     document.head.addEventListener("foo", callback);
     document.head.dispatchEvent(ev);
-    // Gecko resets the flags after dispatching; it will happily dispatch
+    assert_equals(called, expected, "Propagation flag");
+    // dispatchEvent resets the propagation flags so it will happily dispatch
     // the event the second time around.
     document.head.dispatchEvent(ev);
-    assert_equals(called, expected, "Propagation flag");
+    assert_equals(called, true, "Propagation flag after first dispatch");
     document.head.removeEventListener("foo", callback);
   }, desc);
 }