Move SelectionState out of LayoutObject and into Line Layout API

Source/core/layout/line/InlineFlowBox.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef InlineFlowBox_h
 #define InlineFlowBox_h
 
 #include "core/layout/LayoutObjectInlines.h"
 #include "core/layout/OverflowModel.h"
+#include "core/layout/api/SelectionState.h"
 #include "core/layout/line/InlineBox.h"
 #include "core/style/ShadowData.h"
 
 namespace blink {
 
 class HitTestRequest;
 class HitTestResult;
 class InlineTextBox;
 class LineBoxList;
 class SimpleFontData;
@@ skipping 155 matching lines @@
     void flipLinesInBlockDirection(LayoutUnit lineTop, LayoutUnit lineBottom);
     FontBaseline dominantBaseline() const;
 
     LayoutUnit computeOverAnnotationAdjustment(LayoutUnit allowedPosition) const;
     LayoutUnit computeUnderAnnotationAdjustment(LayoutUnit allowedPosition) const;
 
     void computeOverflow(LayoutUnit lineTop, LayoutUnit lineBottom, GlyphOverflowAndFallbackFontsMap&);
 
     void removeChild(InlineBox* child, MarkLineBoxes);
 
-    LayoutObject::SelectionState selectionState() const override;
+    SelectionState selectionState() const override;
 
     bool canAccommodateEllipsis(bool ltr, int blockEdge, int ellipsisWidth) const final;
     LayoutUnit placeEllipsisBox(bool ltr, LayoutUnit blockLeftEdge, LayoutUnit blockRightEdge, LayoutUnit ellipsisWidth, LayoutUnit &truncatedWidth, bool&) override;
 
     bool hasTextChildren() const { return m_hasTextChildren; }
     bool hasTextDescendants() const { return m_hasTextDescendants; }
     void setHasTextDescendants() { m_hasTextDescendants = true; }
 
     void checkConsistency() const;
     void setHasBadChildList();
@@ skipping 148 matching lines @@
 }
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const blink::InlineFlowBox*);
 #endif
 
 #endif // InlineFlowBox_h