[Shadow DOM]: Empty shadow insertion points should behave like <shadow><content *leftover*></conten…

LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-empty-shadow-element.html

Index: LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-empty-shadow-element.html
diff --git a/LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-multiple-shadow-roots.html b/LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-empty-shadow-element.html
similarity index 89%
copy from LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-multiple-shadow-roots.html
copy to LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-empty-shadow-element.html
index e0b7d1c03a971e52b3127b23e28501fd2f165c9f..f08b6ff6c583e00615eff6f8e6efbe86eebf45da 100644
--- a/LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-multiple-shadow-roots.html
+++ b/LayoutTests/fast/dom/shadow/shadow-dom-event-dispatching-empty-shadow-element.html
@@ -19,17 +19,18 @@
                                                  createDOM('content', {'id': 'C'}),
                                                  createDOM('div', {'id': 'D'})),
                                 createShadowRoot({'id': 'younger-shadow-root'},
-                                                 createDOM('shadow', {'id': 'E'},
-                                                            createDOM('content', {'id': 'EC'})),
+                                                 createDOM('shadow', {'id': 'E'}),
                                                  createDOM('div', {'id': 'F'})),
                                 createDOM('div', {'id': 'B'}))));
 
-        addEventListeners(['top', 'A', 'B', 'A/', 'A/C', 'A/D', 'A//', 'A//E', 'A//EC', 'A//F']);
+        addEventListeners(['top', 'A', 'B', 'A/', 'A/C', 'A/D', 'A//', 'A//E', 'A//F']);
         showSandboxTree();
 
         moveMouse('B', 'A');
         moveMouse('A/D', 'A//F');
         moveMouse('B', 'A//F');
+
+        clickElement('A/D');
     </script>
 </body>
 </html>