Merge 135740

Source/WebCore/page/Frame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 651 matching lines @@
 void Frame::clearTimers()
 {
     clearTimers(m_view.get(), document());
 }
 
 #if ENABLE(PAGE_VISIBILITY_API)
 void Frame::dispatchVisibilityStateChangeEvent()
 {
     if (m_doc)
         m_doc->dispatchVisibilityStateChangeEvent();
+
+    Vector<RefPtr<Frame> > childFrames;
     for (Frame* child = tree()->firstChild(); child; child = child->tree()->nextSibling())
-        child->dispatchVisibilityStateChangeEvent();
+        childFrames.append(child);
+
+    for (size_t i = 0; i < childFrames.size(); ++i)
+        childFrames[i]->dispatchVisibilityStateChangeEvent();
 }
 #endif
 
 void Frame::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
     info.addMember(m_doc.get());
     info.addMember(m_loader);
 }
 
@@ skipping 430 matching lines @@
 
     m_view->paintContents(buffer->context(), paintingRect);
 
     RefPtr<Image> image = buffer->copyImage();
     return createDragImageFromImage(image.get());
 }
 
 #endif
 
 } // namespace WebCore