EventSender::contextClick leaks NPObject used as its return value, leading to a leak of DOMWindow.

Source/testing/runner/EventSender.cpp

Index: Source/testing/runner/EventSender.cpp
diff --git a/Source/testing/runner/EventSender.cpp b/Source/testing/runner/EventSender.cpp
index b56a6e10349d26bc1c54be26108cb8571b9efb1b..3fcecb0286e347bd053dd0f32ad794319e1abf9b 100644
--- a/Source/testing/runner/EventSender.cpp
+++ b/Source/testing/runner/EventSender.cpp
@@ -891,7 +891,11 @@ void EventSender::contextClick(const CppArgumentList& arguments, CppVariant* res
     pressedButton = WebMouseEvent::ButtonNone;
 #endif
 
-    result->set(WebBindings::makeStringArray(makeMenuItemStringsFor(m_lastContextMenuData.get(), m_delegate)));
+    NPObject* resultArray = WebBindings::makeStringArray(makeMenuItemStringsFor(m_lastContextMenuData.get(), m_delegate));
+    result->set(resultArray);
+    WebBindings::releaseObject(resultArray);
+
+    m_lastContextMenuData.reset();
 }
 
 class MouseDownTask: public WebMethodTask<EventSender> {