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

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 131 matching lines @@
 
 void LayoutSVGInline::RemoveChild(LayoutObject* child) {
   SVGResourcesCache::ClientWillBeRemovedFromTree(child);
 
   if (LayoutSVGText* text_layout_object =
           LayoutSVGText::LocateLayoutSVGTextAncestor(this))
     text_layout_object->SubtreeChildWillBeRemoved();
   LayoutInline::RemoveChild(child);
 }
 
-void LayoutSVGInline::InvalidateTreeIfNeeded(
+void LayoutSVGInline::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