Improve handling of PaintInvalidationLayer (renamed to PaintInvalidationSubtree)

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

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
@@ skipping 136 matching lines @@
 {
     ASSERT(!needsLayout());
 
     if (!shouldCheckForPaintInvalidation(paintInvalidationState))
         return;
 
     PaintInvalidationState newPaintInvalidationState(paintInvalidationState, *this);
     PaintInvalidationReason reason = invalidatePaintIfNeeded(newPaintInvalidationState);
     clearPaintInvalidationFlags(newPaintInvalidationState);
 
-    if (reason == PaintInvalidationDelayedFull)
-        paintInvalidationState.pushDelayedPaintInvalidationTarget(*this);
-
-    if (reason == PaintInvalidationSVGResourceChange)
-        newPaintInvalidationState.setForceSubtreeInvalidationWithinContainer();
-
-    newPaintInvalidationState.updateForChildren();
+    newPaintInvalidationState.updateForChildren(reason);
     invalidatePaintOfSubtreesIfNeeded(newPaintInvalidationState);
 }
 
 } // namespace blink