[import] Cleanup: get rid of ad-hoc state machine.

LayoutTests/fast/html/imports/import-events-inline.html

Index: LayoutTests/fast/html/imports/import-events-inline.html
diff --git a/LayoutTests/fast/html/imports/import-events-inline.html b/LayoutTests/fast/html/imports/import-events-inline.html
index 64e6e0d3e0b7335227f24000f8df63d1267919f5..0e515acc28a55b4d2fe981961c9e7eff0bed7d27 100644
--- a/LayoutTests/fast/html/imports/import-events-inline.html
+++ b/LayoutTests/fast/html/imports/import-events-inline.html
@@ -9,8 +9,7 @@ function handle(event)
     list.push(event.type + '@' + event.target.id);
     if (list.length < 3)
         return;
-    // FIXME(crbug.com/336113): error event should be dispatched synchronously.
-    expected = ['load@shouldLoad', 'click@toClick', 'error@shouldError'];
+    expected = ['load@shouldLoad', 'error@shouldError', 'click@toClick'];
     shouldBe('window.list', 'expected');
     finishJSTest();
 }