[SVG] Resources should be laid out in dependecy order.

Source/core/rendering/RenderView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 24 matching lines @@
 #include "core/rendering/ColumnInfo.h"
 #include "core/rendering/FlowThreadController.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderFlowThread.h"
 #include "core/rendering/RenderGeometryMap.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderLayerBacking.h"
 #include "core/rendering/RenderLayerCompositor.h"
 #include "core/rendering/RenderSelectionInfo.h"
 #include "core/rendering/RenderWidget.h"
+#include "core/svg/SVGElement.h"
 
 namespace WebCore {
 
 RenderView::RenderView(Document* document)
     : RenderBlockFlow(document)
     , m_frameView(document->view())
     , m_selectionStart(0)
     , m_selectionEnd(0)
     , m_selectionStartPos(-1)
     , m_selectionEndPos(-1)
@@ skipping 211 matching lines @@
         for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
             if ((child->isBox() && toRenderBox(child)->hasRelativeLogicalHeight())
                     || child->style()->logicalHeight().isPercent()
                     || child->style()->logicalMinHeight().isPercent()
                     || child->style()->logicalMaxHeight().isPercent()
                     || child->style()->logicalHeight().isViewportPercentage()
                     || child->style()->logicalMinHeight().isViewportPercentage()
                     || child->style()->logicalMaxHeight().isViewportPercentage()
                     || child->isSVGRoot())
                 layoutScope.setChildNeedsLayout(child);
+
+            // SVG resource containers need to be invalidated outside any particular SVG root layout scope.

[pdr., 2013/09/23 22:26:02]

This comment isn't actually helpful. Can you expand on why?

[f(malita), 2013/09/23 23:20:33]

Didn't want to just duplicate the info in SVGRenderSupport::layoutChildren, but
I guess it should make sense on its own. Will do.

+            if (child->isSVGRoot()) {
+                ASSERT(child->node());
+                ASSERT(child->node()->isSVGElement());
+                toSVGElement(child->node())->invalidateRelativeLengthClients(&layoutScope);
+            }
         }
     }
 
     ASSERT(!m_layoutState);
     if (!needsLayout())
         return;
 
     LayoutState state;
     bool isSeamlessAncestorInFlowThread = initializeLayoutState(state);
 
@@ skipping 926 matching lines @@
 #endif
 
     if (layoutState)
         layoutState->m_isPaginated = m_fragmenting;
 
     if (m_flowThreadState != RenderObject::NotInsideFlowThread)
         m_root->setFlowThreadStateIncludingDescendants(m_flowThreadState);
 }
 
 } // namespace WebCore