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

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1867 matching lines @@
     return;
 
   // Do regular full paint invalidation if the object with
   // kPaintInvalidationDelayedFull is onscreen.
   // Conservatively assume the delayed paint invalidation was caused by
   // background image change.
   SetBackgroundChangedSinceLastPaintInvalidation();
   SetShouldDoFullPaintInvalidationWithoutGeometryChange(kPaintInvalidationFull);
 }
 
-PaintInvalidationReason LayoutBox::InvalidatePaint(
+PaintInvalidationReason LayoutBox::DeprecatedInvalidatePaint(
     const PaintInvalidationState& paint_invalidation_state) {
   if (HasBoxDecorationBackground()
       // We also paint overflow controls in background phase.
       || (HasOverflowClip() && GetScrollableArea()->HasOverflowControls())) {
     PaintLayer& layer = paint_invalidation_state.PaintingLayer();
     if (&layer.GetLayoutObject() != this)
       layer.SetNeedsPaintPhaseDescendantBlockBackgrounds();
   }
 
-  return LayoutBoxModelObject::InvalidatePaint(paint_invalidation_state);
+  return LayoutBoxModelObject::DeprecatedInvalidatePaint(
+      paint_invalidation_state);
 }
 
 PaintInvalidationReason LayoutBox::InvalidatePaint(
     const PaintInvalidatorContext& context) const {
   return BoxPaintInvalidator(*this, context).InvalidatePaint();
 }
 
 LayoutRect LayoutBox::OverflowClipRect(
     const LayoutPoint& location,
     OverlayScrollbarClipBehavior overlay_scrollbar_clip_behavior) const {
@@ skipping 3990 matching lines @@
 void LayoutBox::MutableForPainting::
     SavePreviousContentBoxSizeAndLayoutOverflowRect() {
   auto& rare_data = GetLayoutBox().EnsureRareData();
   rare_data.has_previous_content_box_size_and_layout_overflow_rect_ = true;
   rare_data.previous_content_box_size_ = GetLayoutBox().ContentBoxRect().Size();
   rare_data.previous_layout_overflow_rect_ =
       GetLayoutBox().LayoutOverflowRect();
 }
 
 }  // namespace blink