Tweak PaintInvalidationReasons

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

 /*
  * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 369 matching lines @@
   return (Orientation() == kHorizontalScrollbar
               ? part_layout_object->Size().Width()
               : part_layout_object->Size().Height())
       .ToInt();
 }
 
 void LayoutScrollbar::InvalidateDisplayItemClientsOfScrollbarParts() {
   for (auto& part : parts_) {
     ObjectPaintInvalidator(*part.value)
         .InvalidateDisplayItemClientsIncludingNonCompositingDescendants(
-            kPaintInvalidationScroll);
+            PaintInvalidationReason::kScrollControl);
   }
 }
 
 void LayoutScrollbar::SetVisualRect(const LayoutRect& rect) {
   Scrollbar::SetVisualRect(rect);
   for (auto& part : parts_)
     part.value->SetVisualRect(rect);
 }
 
 }  // namespace blink