Merge 136062

Source/WebCore/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 1530 matching lines @@
     LayoutPoint documentPoint = documentPointForWindowPoint(m_frame, mouseEvent.position());
     MouseEventWithHitTestResults mev = m_frame->document()->prepareMouseEvent(request, documentPoint, mouseEvent);
 
     if (!mev.targetNode()) {
         invalidateClick();
         return false;
     }
 
     m_mousePressNode = mev.targetNode();
 
-    Frame* subframe = subframeForHitTestResult(mev);
-    if (subframe && passMousePressEventToSubframe(mev, subframe)) {
+    RefPtr<Frame> subframe = subframeForHitTestResult(mev);
+    if (subframe && passMousePressEventToSubframe(mev, subframe.get())) {
         // Start capturing future events for this frame.  We only do this if we didn't clear
         // the m_mousePressed flag, which may happen if an AppKit widget entered a modal event loop.
         m_capturesDragging = subframe->eventHandler()->capturesDragging();
         if (m_mousePressed && m_capturesDragging) {
             m_capturingMouseEventsNode = mev.targetNode();
             m_eventHandlerWillResetCapturingMouseEventsNode = true;
         }
         invalidateClick();
         return true;
     }
@@ skipping 2272 matching lines @@
     if (eventType == PlatformEvent::MouseMoved && !m_touchPressed)
         return false;
 
     SyntheticSingleTouchEvent touchEvent(event);
     return handleTouchEvent(touchEvent);
 }
 
 #endif
 
 }