Mark some non-spinvalidation methods deprecated, and update paint/README.md

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 391 matching lines @@
   SubtreeChildWasAdded();
 }
 
 void LayoutSVGText::RemoveChild(LayoutObject* child) {
   SVGResourcesCache::ClientWillBeRemovedFromTree(child);
   SubtreeChildWillBeRemoved();
 
   LayoutSVGBlock::RemoveChild(child);
 }
 
-void LayoutSVGText::InvalidateTreeIfNeeded(
+void LayoutSVGText::DeprecatedInvalidateTree(
     const PaintInvalidationState& paint_invalidation_state) {
   // TODO(wangxianzhu): Verify if the inherited
   // LayoutBoxModelObject::invalidateTreeIfNeeded()
   // is applicable here. If yes, remove this overriding method.
-  LayoutObject::InvalidateTreeIfNeeded(paint_invalidation_state);
+  LayoutObject::DeprecatedInvalidateTree(paint_invalidation_state);
 }
 
 }  // namespace blink