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

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

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index ba11080d1292f01d6b4864497998fd6e55cbb228..f9da27f0efe35a3a26bdad096795891aac51c436 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -1134,7 +1134,7 @@ LayoutRect LayoutObject::InvalidatePaintRectangle(
       dirty_rect, display_item_client);
 }
 
-void LayoutObject::InvalidateTreeIfNeeded(
+void LayoutObject::DeprecatedInvalidateTree(
     const PaintInvalidationState& paint_invalidation_state) {
   DCHECK(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
   EnsureIsReadyForPaintInvalidation();
@@ -1154,20 +1154,20 @@ void LayoutObject::InvalidateTreeIfNeeded(
   }
 
   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 {
@@ -1177,7 +1177,7 @@ LayoutRect LayoutObject::SelectionRectInViewCoordinates() const {
   return selection_rect;
 }
 
-PaintInvalidationReason LayoutObject::InvalidatePaint(
+PaintInvalidationReason LayoutObject::DeprecatedInvalidatePaint(
     const PaintInvalidationState& paint_invalidation_state) {
   DCHECK_EQ(&paint_invalidation_state.CurrentObject(), this);