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

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

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Computer Inc.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 43 matching lines @@
       MapCoordinatesFlags = kApplyContainerFlip) const final;
   const LayoutObject* PushMappingToContainer(
       const LayoutBoxModelObject* ancestor_to_stop_at,
       LayoutGeometryMap&) const final;
   void AbsoluteQuads(Vector<FloatQuad>&,
                      MapCoordinatesFlags mode = 0) const final;
 
  private:
   InlineFlowBox* CreateInlineFlowBox() final;
 
-  void InvalidateTreeIfNeeded(const PaintInvalidationState&) final;
+  void DeprecatedInvalidateTree(const PaintInvalidationState&) final;
 
   void WillBeDestroyed() final;
   void StyleDidChange(StyleDifference, const ComputedStyle* old_style) final;
 
   void AddChild(LayoutObject* child,
                 LayoutObject* before_child = nullptr) final;
   void RemoveChild(LayoutObject*) final;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGInline, IsSVGInline());
 
 }  // namespace blink
 
 #endif  // LayoutSVGInline_H