Pause SVG animations when the document is detached.

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 603 matching lines @@
 
     m_markers->detach();
 
     m_cssCanvasElements.clear();
 
     // FIXME: consider using ActiveDOMObject.
     if (m_scriptedAnimationController)
         m_scriptedAnimationController->clearDocumentPointer();
     m_scriptedAnimationController.clear();
 
+    if (svgExtensions())
+        accessSVGExtensions()->pauseAnimations();
+
     lifecycleNotifier()->notifyDocumentWasDisposed();
 }
 
 Element* Document::getElementById(const AtomicString& id) const
 {
     return TreeScope::getElementById(id);
 }
 
 SelectorQueryCache* Document::selectorQueryCache()
 {
@@ skipping 1244 matching lines @@
         clearAXObjectCache();
 
     stopActiveDOMObjects();
     m_eventQueue->close();
 
     // FIXME: consider using ActiveDOMObject.
     if (m_scriptedAnimationController)
         m_scriptedAnimationController->clearDocumentPointer();
     m_scriptedAnimationController.clear();
 
+    if (svgExtensions())
+        accessSVGExtensions()->pauseAnimations();
+
     RenderObject* render = renderer();
 
     documentWillBecomeInactive();
 
     SharedWorkerRepository::documentDetached(this);
 
     if (m_frame) {
         FrameView* view = m_frame->view();
         if (view)
             view->detachCustomScrollbars();
-
     }
 
     // indicate destruction mode,  i.e. attached() but renderer == 0
     setRenderer(0);
 
     m_hoverNode = 0;
     m_focusedNode = 0;
     m_activeElement = 0;
 
     ContainerNode::detach(context);
@@ skipping 3242 matching lines @@
 {
     return DocumentLifecycleNotifier::create(this);
 }
 
 DocumentLifecycleNotifier* Document::lifecycleNotifier()
 {
     return static_cast<DocumentLifecycleNotifier*>(ScriptExecutionContext::lifecycleNotifier());
 }
 
 } // namespace WebCore