Move SelectionState out of LayoutObject and into Line Layout API

Source/core/paint/InlineFlowBoxPainter.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 "config.h"
 #include "core/paint/InlineFlowBoxPainter.h"
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutView.h"
+#include "core/layout/api/SelectionState.h"
 #include "core/layout/line/InlineFlowBox.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/DeprecatedPaintLayer.h"
 #include "core/paint/PaintInfo.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 
 namespace blink {
 
 void InlineFlowBoxPainter::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, const LayoutUnit lineTop, const LayoutUnit lineBottom)
@@ skipping 333 matching lines @@
             rect.setHeight(logicalHeight);
         } else {
             rect.setX(logicalTop);
             rect.setWidth(logicalHeight);
         }
     }
     return rect;
 }
 
 } // namespace blink