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

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

Index: third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
index da8607bd6916146c8fe94b8227354113cd58947c..951033f5eac542974603457a431f8b0042f3c607 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
@@ -550,7 +550,7 @@ void LayoutBoxModelObject::AddLayerHitTestRects(
 }
 
 DISABLE_CFI_PERF
-void LayoutBoxModelObject::InvalidateTreeIfNeeded(
+void LayoutBoxModelObject::DeprecatedInvalidateTree(
     const PaintInvalidationState& paint_invalidation_state) {
   DCHECK(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
   EnsureIsReadyForPaintInvalidation();
@@ -569,7 +569,7 @@ void LayoutBoxModelObject::InvalidateTreeIfNeeded(
   LayoutRect previous_visual_rect = VisualRect();
   LayoutPoint previous_location = paint_invalidator.LocationInBacking();
   PaintInvalidationReason reason =
-      InvalidatePaint(new_paint_invalidation_state);
+      DeprecatedInvalidatePaint(new_paint_invalidation_state);
 
   if (previous_location != paint_invalidator.LocationInBacking()) {
     new_paint_invalidation_state
@@ -589,7 +589,7 @@ void LayoutBoxModelObject::InvalidateTreeIfNeeded(
   }
 
   new_paint_invalidation_state.UpdateForChildren(reason);
-  InvalidatePaintOfSubtreesIfNeeded(new_paint_invalidation_state);
+  DeprecatedInvalidatePaintOfSubtrees(new_paint_invalidation_state);
 
   ClearPaintInvalidationFlags();
 }