Event-path fix-up for PointerEvents in shadow dom.

third_party/WebKit/Source/core/events/NodeEventContext.cpp

Index: third_party/WebKit/Source/core/events/NodeEventContext.cpp
diff --git a/third_party/WebKit/Source/core/events/NodeEventContext.cpp b/third_party/WebKit/Source/core/events/NodeEventContext.cpp
index 2b5f6de8add544642b1b14f63d7a15baf4f06149..5b490705e720c96da1535e039cf67eb5e48c20ef 100644
--- a/third_party/WebKit/Source/core/events/NodeEventContext.cpp
+++ b/third_party/WebKit/Source/core/events/NodeEventContext.cpp
@@ -30,6 +30,7 @@
 #include "core/events/Event.h"
 #include "core/events/FocusEvent.h"
 #include "core/events/MouseEvent.h"
+#include "core/events/PointerEvent.h"
 #include "core/events/TouchEventContext.h"
 
 namespace blink {
@@ -51,6 +52,8 @@ void NodeEventContext::handleLocalEvents(Event& event) const {
   } else if (relatedTarget()) {
     if (event.isMouseEvent()) {
       toMouseEvent(event).setRelatedTarget(relatedTarget());
+    } else if (event.isPointerEvent()) {
+      toPointerEvent(event).setRelatedTarget(relatedTarget());
     } else if (event.isFocusEvent()) {
       toFocusEvent(event).setRelatedTarget(relatedTarget());
     }