Support an Event Path API

LayoutTests/fast/dom/shadow/event-path-in-shadow-tree-expected.txt

Index: LayoutTests/fast/dom/shadow/event-path-in-shadow-tree-expected.txt
diff --git a/LayoutTests/fast/dom/shadow/event-path-in-shadow-tree-expected.txt b/LayoutTests/fast/dom/shadow/event-path-in-shadow-tree-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..46ac28967b0deee950019ceebba1dc477669a416
--- /dev/null
+++ b/LayoutTests/fast/dom/shadow/event-path-in-shadow-tree-expected.txt
@@ -0,0 +1,43 @@
+
+event.path() on node #C
+#C, #B, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 7
+
+event.path() on node #B
+#C, #B, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 7
+
+event.path() on node #F
+#C, #B, #F, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 10
+
+event.path() on node #J
+#C, #B, #F, #J, #I, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 14
+
+event.path() on node #I
+#C, #B, #F, #J, #I, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 14
+
+event.path() on node #M
+#C, #B, #F, #J, #I, #M, #L, #K, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 17
+
+event.path() on node #L
+#C, #B, #F, #J, #I, #M, #L, #K, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 17
+
+event.path() on node #K
+#C, #B, #F, #J, #I, #M, #L, #K, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 17
+
+event.path() on node #H
+#C, #B, #F, #J, #I, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 14
+
+event.path() on node #G
+#C, #B, #F, #J, #I, #H, #G, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 14
+
+event.path() on node #E
+#C, #B, #F, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 10
+
+event.path() on node #D
+#C, #B, #F, #E, #D, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 10
+
+event.path() on node #A
+#C, #B, #A, #sandbox, [object HTMLBodyElement], [object HTMLHtmlElement], [object HTMLDocument], length: 7
+PASS successfullyParsed is true
+
+TEST COMPLETE
+