New paint invalidation using paint property tree walk

third_party/WebKit/Source/core/layout/svg/LayoutSVGText.cpp

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved.
  * Copyright (C) 2012 Google Inc.
  *
@@ skipping 491 matching lines @@
 
     Vector<SVGTextLayoutAttributes*, 2> affectedAttributes;
     FontCachePurgePreventer fontCachePurgePreventer;
     subtreeChildWillBeRemoved(child, affectedAttributes);
     LayoutSVGBlock::removeChild(child);
     subtreeChildWasRemoved(affectedAttributes);
 }
 
 void LayoutSVGText::invalidateTreeIfNeeded(PaintInvalidationState& paintInvalidationState)
 {
+    ASSERT(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
     ASSERT(!needsLayout());
 
     if (!shouldCheckForPaintInvalidation(paintInvalidationState))
         return;
 
     PaintInvalidationReason reason = invalidatePaintIfNeeded(paintInvalidationState, paintInvalidationState.paintInvalidationContainer());
     clearPaintInvalidationState(paintInvalidationState);
 
     if (reason == PaintInvalidationDelayedFull)
         paintInvalidationState.pushDelayedPaintInvalidationTarget(*this);
 
     ForceHorriblySlowRectMapping slowRectMapping(&paintInvalidationState);
     PaintInvalidationState childTreeWalkState(paintInvalidationState, *this, paintInvalidationState.paintInvalidationContainer());
     if (reason == PaintInvalidationSVGResourceChange)
         childTreeWalkState.setForceSubtreeInvalidationWithinContainer();
     invalidatePaintOfSubtreesIfNeeded(childTreeWalkState);
 }
 
 } // namespace blink