Make SelectionState enum class

third_party/WebKit/Source/core/paint/PartPainter.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/PartPainter.h"
 
 #include "core/frame/FrameOrPlugin.h"
 #include "core/layout/LayoutPart.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
 #include "core/paint/ObjectPainter.h"
 #include "core/paint/PaintInfo.h"
 #include "core/paint/PaintLayer.h"
 #include "core/paint/ReplacedPainter.h"
 #include "core/paint/RoundedInnerRectClipper.h"
 #include "core/paint/ScrollableAreaPainter.h"
 #include "core/paint/TransformRecorder.h"
 #include "platform/wtf/Optional.h"
 
 namespace blink {
 
 bool PartPainter::IsSelected() const {
   SelectionState s = layout_part_.GetSelectionState();
-  if (s == SelectionNone)
+  if (s == SelectionState::kNone)
     return false;
-  if (s == SelectionInside)
+  if (s == SelectionState::kInside)
     return true;
 
   int selection_start, selection_end;
   std::tie(selection_start, selection_end) = layout_part_.SelectionStartEnd();
-  if (s == SelectionStart)
+  if (s == SelectionState::kStart)
     return selection_start == 0;
 
   int end = layout_part_.GetNode()->hasChildren()
                 ? layout_part_.GetNode()->CountChildren()
                 : 1;
-  if (s == SelectionEnd)
+  if (s == SelectionState::kEnd)
     return selection_end == end;
-  if (s == SelectionBoth)
+  if (s == SelectionState::kStartAndEnd)
     return selection_start == 0 && selection_end == end;
 
   DCHECK(0);
   return false;
 }
 
 void PartPainter::Paint(const PaintInfo& paint_info,
                         const LayoutPoint& paint_offset) {
   ObjectPainter(layout_part_).CheckPaintOffset(paint_info, paint_offset);
   LayoutPoint adjusted_paint_offset = paint_offset + layout_part_.Location();
@@ skipping 84 matching lines @@
       paint_location - frame_or_plugin->FrameRect().Location();
   TransformRecorder transform(
       paint_info.context, layout_part_,
       AffineTransform::Translation(view_paint_offset.Width(),
                                    view_paint_offset.Height()));
   CullRect adjusted_cull_rect(paint_info.GetCullRect(), -view_paint_offset);
   frame_or_plugin->Paint(paint_info.context, adjusted_cull_rect);
 }
 
 }  // namespace blink