Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/layout/svg/SVGTextLayoutEngine.h

 /*
  * Copyright (C) Research In Motion Limited 2010-2012. 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 SVGTextLayoutEngine_h
 #define SVGTextLayoutEngine_h
 
 #include "core/layout/api/LineLayoutSVGInlineText.h"
 #include "core/layout/svg/LayoutSVGInlineText.h"
 #include "core/layout/svg/SVGTextFragment.h"
 #include "wtf/Allocator.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 class ComputedStyle;
 class InlineFlowBox;
 class LayoutObject;
 class PathPositionMapper;
 class SVGInlineFlowBox;
 class SVGInlineTextBox;
 class SVGTextMetrics;
@@ skipping 43 matching lines @@
     Vector<SVGInlineTextBox*> m_lineLayoutBoxes;
 
     SVGTextFragment m_currentTextFragment;
     SVGInlineTextMetricsIterator m_visualMetricsIterator;
     FloatPoint m_textPosition;
     bool m_isVerticalText;
     bool m_inPathLayout;
     bool m_textLengthSpacingInEffect;
 
     // Text on path layout
-    std::unique_ptr<PathPositionMapper> m_textPath;
+    OwnPtr<PathPositionMapper> m_textPath;
     float m_textPathStartOffset;
     float m_textPathCurrentOffset;
     float m_textPathDisplacement;
     float m_textPathSpacing;
     float m_textPathScaling;
 };
 
 } // namespace blink
 
 #endif