Tweak PaintInvalidationReasons

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 223 matching lines @@
   // the 'root' i.e. html or body) as the background positioning area, and we
   // should fully invalidate on viewport resize if the background image is not
   // composited and needs full paint invalidation on background positioning area
   // resize.
   if (Style()->HasFixedBackgroundImage() &&
       (!compositor_ || !compositor_->NeedsFixedRootBackgroundLayer(Layer()))) {
     if ((width_changed && MustInvalidateFillLayersPaintOnWidthChange(
                               Style()->BackgroundLayers())) ||
         (height_changed && MustInvalidateFillLayersPaintOnHeightChange(
                                Style()->BackgroundLayers())))
-      SetShouldDoFullPaintInvalidation(kPaintInvalidationBoundsChange);
+      SetShouldDoFullPaintInvalidation(PaintInvalidationReason::kBackground);
   }
 }
 
 void LayoutView::UpdateLayout() {
   if (!GetDocument().Paginated())
     SetPageLogicalHeight(LayoutUnit());
 
   // TODO(wangxianzhu): Move this into ViewPaintInvalidator when
   // rootLayerScrolling is permanently enabled.
   IncludeScrollbarsInRect include_scrollbars =
@@ skipping 569 matching lines @@
   // Frame scroll corner is painted using LayoutView as the display item client.
   if (!RuntimeEnabledFeatures::rootLayerScrollingEnabled() &&
       (GetFrameView()->HorizontalScrollbar() ||
        GetFrameView()->VerticalScrollbar()))
     return false;
 
   return LayoutBlockFlow::PaintedOutputOfObjectHasNoEffectRegardlessOfSize();
 }
 
 }  // namespace blink