Make SelectionState enum class

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 912 matching lines @@
   // The border can potentially be further extended by our containingBlock().
   if (root_block != this)
     return ContainingBlock()->LogicalRightSelectionOffset(
         root_block, position + LogicalTop());
   return LogicalRightOffsetForContent();
 }
 
 void LayoutBlock::SetSelectionState(SelectionState state) {
   LayoutBox::SetSelectionState(state);
 
-  if (InlineBoxWrapper() && CanUpdateSelectionOnRootLineBoxes())
-    InlineBoxWrapper()->Root().SetHasSelectedChildren(state != SelectionNone);
+  if (InlineBoxWrapper() && CanUpdateSelectionOnRootLineBoxes()) {
+    InlineBoxWrapper()->Root().SetHasSelectedChildren(state !=
+                                                      SelectionState::kNone);
+  }
 }
 
 TrackedLayoutBoxListHashSet* LayoutBlock::PositionedObjectsInternal() const {
   return g_positioned_descendants_map ? g_positioned_descendants_map->at(this)
                                       : nullptr;
 }
 
 void LayoutBlock::InsertPositionedObject(LayoutBox* o) {
   DCHECK(!IsAnonymousBlock());
   DCHECK_EQ(o->ContainingBlock(), this);
@@ skipping 1251 matching lines @@
 bool LayoutBlock::HasDefiniteLogicalHeight() const {
   return AvailableLogicalHeightForPercentageComputation() != LayoutUnit(-1);
 }
 
 bool LayoutBlock::NeedsPreferredWidthsRecalculation() const {
   return (HasRelativeLogicalHeight() && Style()->LogicalWidth().IsAuto()) ||
          LayoutBox::NeedsPreferredWidthsRecalculation();
 }
 
 }  // namespace blink