Make SelectionState enum class

third_party/WebKit/Source/core/paint/BoxClipper.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/BoxClipper.h"
 
 #include "core/layout/LayoutBox.h"
 #include "core/layout/svg/LayoutSVGRoot.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintInfo.h"
@@ skipping 52 matching lines @@
   FloatRoundedRect clip_rounded_rect(0, 0, 0, 0);
   bool has_border_radius = box_.Style()->HasBorderRadius();
   if (has_border_radius) {
     clip_rounded_rect = box_.Style()->GetRoundedInnerBorderFor(
         LayoutRect(accumulated_offset, box_.Size()));
   }
 
   // Selection may extend beyond visual overflow, so this optimization is
   // invalid if selection is present.
   if (contents_clip_behavior == kSkipContentsClipIfPossible &&
-      box.GetSelectionState() == SelectionNone) {
+      box.GetSelectionState() == SelectionState::kNone) {
     LayoutRect contents_visual_overflow = box_.ContentsVisualOverflowRect();
     if (contents_visual_overflow.IsEmpty())
       return;
 
     LayoutRect conservative_clip_rect = clip_rect;
     if (has_border_radius)
       conservative_clip_rect.Intersect(
           LayoutRect(clip_rounded_rect.RadiusCenterRect()));
     conservative_clip_rect.MoveBy(-accumulated_offset);
     if (box_.HasLayer())
@@ skipping 16 matching lines @@
 BoxClipper::~BoxClipper() {
   if (clip_type_ == DisplayItem::kUninitializedType)
     return;
 
   DCHECK(BoxNeedsClip(box_));
   paint_info_.context.GetPaintController().EndItem<EndClipDisplayItem>(
       box_, DisplayItem::ClipTypeToEndClipType(clip_type_));
 }
 
 }  // namespace blink