core/platform: Include wtf files using "wtf/foo.h" form.

Source/core/platform/graphics/PathTraversalState.cpp

 /*
  * Copyright (C) 2006, 2007 Eric Seidel <eric@webkit.org>
  *
  * 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.
  */
 
 #include "config.h"
 #include "core/platform/graphics/PathTraversalState.h"
 
-#include <wtf/MathExtras.h>
-#include <wtf/Vector.h>
+#include "wtf/MathExtras.h"
+#include "wtf/Vector.h"
 
 namespace WebCore {
 
 static const float kPathSegmentLengthTolerance = 0.00001f;
 
 static inline FloatPoint midPoint(const FloatPoint& first, const FloatPoint& second)
 {
     return FloatPoint((first.x() + second.x()) / 2.0f, (first.y() + second.y()) / 2.0f);
 }
 
@@ skipping 180 matching lines @@
             m_current.move(offset * cosf(slope), offset * sinf(slope));
         } else
             m_normalAngle = rad2deg(slope);
         m_success = true;
     }
     m_previous = m_current;
 }
 
 }