Check subtree paint invalidation when overflow clip status changes

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 378 matching lines @@
 void LayoutSVGText::removeChild(LayoutObject* child)
 {
     SVGResourcesCache::clientWillBeRemovedFromTree(child);
     subtreeChildWillBeRemoved();
 
     LayoutSVGBlock::removeChild(child);
 }
 
 void LayoutSVGText::invalidateTreeIfNeeded(const PaintInvalidationState& paintInvalidationState)
 {
-    ASSERT(!needsLayout());
-
-    if (!shouldCheckForPaintInvalidation(paintInvalidationState))
-        return;
-
-    PaintInvalidationState newPaintInvalidationState(paintInvalidationState, *this);
-    PaintInvalidationReason reason = invalidatePaintIfNeeded(newPaintInvalidationState);
-    clearPaintInvalidationFlags(newPaintInvalidationState);
-
-    newPaintInvalidationState.updateForChildren(reason);
-    invalidatePaintOfSubtreesIfNeeded(newPaintInvalidationState);
+    // TODO(wangxianzhu): Verify if the inherited LayoutBoxModelObject::invalidateTreeIfNeeded()
+    // is applicable here. If yes, remove this overriding method.
+    LayoutObject::invalidateTreeIfNeeded(paintInvalidationState);
 }
 
 } // namespace blink