Add platform/geometry pretty printers for logging and testing

third_party/WebKit/Source/platform/geometry/FloatPoint3D.h

 /*
     Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <wildfox@kde.org>
                   2004, 2005 Rob Buis <buis@kde.org>
                   2005 Eric Seidel <eric@webkit.org>
                   2010 Zoltan Herczeg <zherczeg@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.
 */
 
 #ifndef FloatPoint3D_h
 #define FloatPoint3D_h
 
 #include "platform/geometry/FloatPoint.h"
 #include "third_party/skia/include/core/SkPoint3.h"
 #include "wtf/Allocator.h"
+#include <iosfwd>
 
 namespace blink {
 
 class PLATFORM_EXPORT FloatPoint3D {
     DISALLOW_NEW();
 public:
     FloatPoint3D()
         : m_x(0)
         , m_y(0)
         , m_z(0)
@@ skipping 145 matching lines @@
 inline FloatPoint3D operator*(const FloatPoint3D& v, float k)
 {
     return FloatPoint3D(k * v.x(), k * v.y(), k * v.z());
 }
 
 inline float FloatPoint3D::distanceTo(const FloatPoint3D& a) const
 {
     return (*this - a).length();
 }
 
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const FloatPoint3D&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const FloatPoint3D&);
 
 } // namespace blink
 
 #endif // FloatPoint3D_h