Make SelectionState enum class

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

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1467 matching lines @@
   // A single rectangle that encompasses all of the selected objects within this
   // object. Used to determine the tightest possible bounding box for the
   // selection. The rect returned is in the object's local coordinate space.
   virtual LayoutRect LocalSelectionRect() const { return LayoutRect(); }
 
   // View coordinates means the coordinate space of |view()|.
   LayoutRect SelectionRectInViewCoordinates() const;
 
   virtual bool CanBeSelectionLeaf() const { return false; }
   bool HasSelectedChildren() const {
-    return GetSelectionState() != SelectionNone;
+    return GetSelectionState() != SelectionState::kNone;
   }
 
   bool IsSelectable() const;
   // Obtains the selection colors that should be used when painting a selection.
   Color SelectionBackgroundColor() const;
   Color SelectionForegroundColor(const GlobalPaintFlags) const;
   Color SelectionEmphasisMarkColor(const GlobalPaintFlags) const;
 
   /**
      * Returns the local coordinates of the caret within this layout object.
@@ skipping 797 matching lines @@
           has_box_decoration_background_(false),
           has_previous_location_in_backing_(false),
           has_previous_selection_visual_rect_(false),
           needs_paint_property_update_(true),
           subtree_needs_paint_property_update_(true),
           descendant_needs_paint_property_update_(true),
           background_changed_since_last_paint_invalidation_(false),
           outline_may_be_affected_by_descendants_(false),
           previous_outline_may_be_affected_by_descendants_(false),
           positioned_state_(kIsStaticallyPositioned),
-          selection_state_(SelectionNone),
+          selection_state_(static_cast<unsigned>(SelectionState::kNone)),
           background_obscuration_state_(kBackgroundObscurationStatusInvalid),
           full_paint_invalidation_reason_(
               static_cast<unsigned>(PaintInvalidationReason::kNone)) {}
 
     // Self needs layout means that this layout object is marked for a full
     // layout. This is the default layout but it is expensive as it recomputes
     // everything. For CSS boxes, this includes the width (laying out the line
     // boxes again), the margins (due to block collapsing margins), the
     // positions, the height and the potential overflow.
     ADD_BOOLEAN_BITFIELD(self_needs_layout_, SelfNeedsLayout);
@@ skipping 243 matching lines @@
       }
     }
     void ClearPositionedState() {
       positioned_state_ = static_cast<unsigned>(EPosition::kStatic);
     }
 
     ALWAYS_INLINE SelectionState GetSelectionState() const {
       return static_cast<SelectionState>(selection_state_);
     }
     ALWAYS_INLINE void SetSelectionState(SelectionState selection_state) {
-      selection_state_ = selection_state;
+      selection_state_ = static_cast<unsigned>(selection_state);
     }
 
     ALWAYS_INLINE BackgroundObscurationState
     GetBackgroundObscurationState() const {
       return static_cast<BackgroundObscurationState>(
           background_obscuration_state_);
     }
     ALWAYS_INLINE void SetBackgroundObscurationState(
         BackgroundObscurationState s) const {
       background_obscuration_state_ = s;
@@ skipping 256 matching lines @@
 CORE_EXPORT void showLineTree(const blink::LayoutObject*);
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1,
                                 const blink::LayoutObject* object2);
 
 #endif
 
 #endif  // LayoutObject_h