Move geometry classes from core/platform/graphics to platform/geometry

Source/core/platform/graphics/FloatPoint3D.cpp

-/*
-    Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <wildfox@kde.org>
-                  2004, 2005 Rob Buis <buis@kde.org>
-                  2005 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
-    aint 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/FloatPoint3D.h"
-
-#include <math.h>
-
-namespace WebCore {
-
-void FloatPoint3D::normalize()
-{
-    float tempLength = length();
-
-    if (tempLength) {
-        m_x /= tempLength;
-        m_y /= tempLength;
-        m_z /= tempLength;
-    }
-}
-
-} // namespace WebCore
-