From b4a347908a5e5e0f159c2f92241723f7c2565cac Mon Sep 17 00:00:00 2001
From: Masayuki Nakano <masayuki@d-toybox.com>
Date: Fri, 18 Oct 2013 15:10:21 +0900
Subject: [PATCH] Bug 920425 part.6 Use
 mozilla::WidgetEvent::AsScrollAreaEvent() r=smaug

---
 content/events/src/nsDOMEvent.cpp        | 3 +--
 content/events/src/nsEventDispatcher.cpp | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/content/events/src/nsDOMEvent.cpp b/content/events/src/nsDOMEvent.cpp
index ac7ec0b7a0cc..25862cba4192 100644
--- a/content/events/src/nsDOMEvent.cpp
+++ b/content/events/src/nsDOMEvent.cpp
@@ -632,8 +632,7 @@ nsDOMEvent::DuplicatePrivateData()
     }
     case NS_SCROLLAREA_EVENT:
     {
-      InternalScrollAreaEvent* oldScrollAreaEvent =
-        static_cast<InternalScrollAreaEvent*>(mEvent);
+      InternalScrollAreaEvent* oldScrollAreaEvent = mEvent->AsScrollAreaEvent();
       InternalScrollAreaEvent* scrollAreaEvent = 
         new InternalScrollAreaEvent(false, msg, nullptr);
       scrollAreaEvent->AssignScrollAreaEventData(*oldScrollAreaEvent, true);
diff --git a/content/events/src/nsEventDispatcher.cpp b/content/events/src/nsEventDispatcher.cpp
index aee809c32721..7e03701a10cf 100644
--- a/content/events/src/nsEventDispatcher.cpp
+++ b/content/events/src/nsEventDispatcher.cpp
@@ -700,7 +700,7 @@ nsEventDispatcher::CreateEvent(mozilla::dom::EventTarget* aOwner,
                               static_cast<WidgetGUIEvent*>(aEvent));
     case NS_SCROLLAREA_EVENT:
       return NS_NewDOMScrollAreaEvent(aDOMEvent, aOwner, aPresContext,
-               static_cast<InternalScrollAreaEvent*>(aEvent));
+                                      aEvent->AsScrollAreaEvent());
     case NS_KEY_EVENT:
       return NS_NewDOMKeyboardEvent(aDOMEvent, aOwner, aPresContext,
                                     static_cast<WidgetKeyboardEvent*>(aEvent));