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

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
@@ skipping 1116 matching lines @@
   return IntSize();
 }
 
 LayoutRect LayoutObject::InvalidatePaintRectangle(
     const LayoutRect& dirty_rect,
     DisplayItemClient* display_item_client) const {
   return ObjectPaintInvalidator(*this).InvalidatePaintRectangle(
       dirty_rect, display_item_client);
 }
 
-void LayoutObject::InvalidateTreeIfNeeded(
+void LayoutObject::DeprecatedInvalidateTree(
     const PaintInvalidationState& paint_invalidation_state) {
   DCHECK(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
   EnsureIsReadyForPaintInvalidation();
 
   // If we didn't need paint invalidation then our children don't need as well.
   // Skip walking down the tree as everything should be fine below us.
   if (!ShouldCheckForPaintInvalidationWithPaintInvalidationState(
           paint_invalidation_state))
     return;
 
   PaintInvalidationState new_paint_invalidation_state(paint_invalidation_state,
                                                       *this);
 
   if (MayNeedPaintInvalidationSubtree()) {
     new_paint_invalidation_state
         .SetForceSubtreeInvalidationCheckingWithinContainer();
   }
 
   PaintInvalidationReason reason =
-      InvalidatePaint(new_paint_invalidation_state);
+      DeprecatedInvalidatePaint(new_paint_invalidation_state);
   new_paint_invalidation_state.UpdateForChildren(reason);
-  InvalidatePaintOfSubtreesIfNeeded(new_paint_invalidation_state);
+  DeprecatedInvalidatePaintOfSubtrees(new_paint_invalidation_state);
 
   ClearPaintInvalidationFlags();
 }
 
 DISABLE_CFI_PERF
-void LayoutObject::InvalidatePaintOfSubtreesIfNeeded(
+void LayoutObject::DeprecatedInvalidatePaintOfSubtrees(
     const PaintInvalidationState& child_paint_invalidation_state) {
   DCHECK(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
 
   for (auto* child = SlowFirstChild(); child; child = child->NextSibling())
-    child->InvalidateTreeIfNeeded(child_paint_invalidation_state);
+    child->DeprecatedInvalidateTree(child_paint_invalidation_state);
 }
 
 LayoutRect LayoutObject::SelectionRectInViewCoordinates() const {
   LayoutRect selection_rect = LocalSelectionRect();
   if (!selection_rect.IsEmpty())
     MapToVisualRectInAncestorSpace(View(), selection_rect);
   return selection_rect;
 }
 
-PaintInvalidationReason LayoutObject::InvalidatePaint(
+PaintInvalidationReason LayoutObject::DeprecatedInvalidatePaint(
     const PaintInvalidationState& paint_invalidation_state) {
   DCHECK_EQ(&paint_invalidation_state.CurrentObject(), this);
 
   if (StyleRef().HasOutline()) {
     PaintLayer& layer = paint_invalidation_state.PaintingLayer();
     if (&layer.GetLayoutObject() != this)
       layer.SetNeedsPaintPhaseDescendantOutlines();
   }
 
   LayoutView* v = View();
@@ skipping 2444 matching lines @@
     const blink::LayoutObject* root = object1;
     while (root->Parent())
       root = root->Parent();
     root->ShowLayoutTreeAndMark(object1, "*", object2, "-", 0);
   } else {
     WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
   }
 }
 
 #endif