Reset m_didTransformToRootUpdate flag during invalidationTreeIfNeeded

Source/core/rendering/svg/RenderSVGTransformableContainer.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 88 matching lines @@
     m_didTransformToRootUpdate = m_needsTransformUpdate || SVGRenderSupport::transformToRootChanged(parent());
     if (!m_needsTransformUpdate)
         return false;
 
     m_localTransform = element->animatedLocalTransform();
     m_localTransform.translate(m_lastTranslation.width(), m_lastTranslation.height());
     m_needsTransformUpdate = false;
     return true;
 }
 
+void RenderSVGTransformableContainer::clearPaintInvalidationState()
+{
+    RenderSVGContainer::clearPaintInvalidationState();
+
+    ASSERT(!m_needsTransformUpdate);
+    m_didTransformToRootUpdate = false;
 }
+
+}