Create LineLayout api

Source/core/layout/line/LineInfo.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated.
  *
  * 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 LineInfo_h
 #define LineInfo_h
 
-#include "core/layout/LayoutBlock.h"
+#include "core/layout/api/LineLayoutBlockFlow.h"
 #include "core/layout/line/LineWidth.h"
 
 namespace blink {
 
 class LineInfo {
 public:
     LineInfo()
         : m_isFirstLine(true)
         , m_isLastLine(false)
         , m_isEmpty(true)
         , m_previousLineBrokeCleanly(true)
         , m_floatPaginationStrut(0)
         , m_runsFromLeadingWhitespace(0)
     { }
 
     bool isFirstLine() const { return m_isFirstLine; }
     bool isLastLine() const { return m_isLastLine; }
     bool isEmpty() const { return m_isEmpty; }
     bool previousLineBrokeCleanly() const { return m_previousLineBrokeCleanly; }
     LayoutUnit floatPaginationStrut() const { return m_floatPaginationStrut; }
     unsigned runsFromLeadingWhitespace() const { return m_runsFromLeadingWhitespace; }
     void resetRunsFromLeadingWhitespace() { m_runsFromLeadingWhitespace = 0; }
     void incrementRunsFromLeadingWhitespace() { m_runsFromLeadingWhitespace++; }
 
     void setFirstLine(bool firstLine) { m_isFirstLine = firstLine; }
     void setLastLine(bool lastLine) { m_isLastLine = lastLine; }
-    void setEmpty(bool empty, LayoutBlock* block = 0, LineWidth* lineWidth = 0)
+    void setEmpty(bool empty, LineLayoutBlockFlow block = LineLayoutBlockFlow(), LineWidth* lineWidth = 0)
     {
         if (m_isEmpty == empty)
             return;
         m_isEmpty = empty;
         if (!empty && block && floatPaginationStrut()) {
-            block->setLogicalHeight(block->logicalHeight() + floatPaginationStrut());
+            block.setLogicalHeight(block.logicalHeight() + floatPaginationStrut());
             setFloatPaginationStrut(0);
             lineWidth->updateAvailableWidth();
         }
     }
 
     void setPreviousLineBrokeCleanly(bool previousLineBrokeCleanly) { m_previousLineBrokeCleanly = previousLineBrokeCleanly; }
     void setFloatPaginationStrut(LayoutUnit strut) { m_floatPaginationStrut = strut; }
 
 private:
     bool m_isFirstLine;
     bool m_isLastLine;
     bool m_isEmpty;
     bool m_previousLineBrokeCleanly;
     LayoutUnit m_floatPaginationStrut;
     unsigned m_runsFromLeadingWhitespace;
 };
 
 }
 
 #endif // LineInfo_h