Add platform/geometry pretty printers for logging and testing

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

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  All rights reserved.
  *               2008 Eric Seidel <eric@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 117 matching lines @@
     explicit FloatSize(const CGSize&); // don't do this implicitly since it's lossy
     operator CGSize() const;
 #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
     explicit FloatSize(const NSSize &); // don't do this implicitly since it's lossy
     operator NSSize() const;
 #endif
 #endif
 
     operator SkSize() const { return SkSize::Make(m_width, m_height); }
 
-#ifndef NDEBUG
-    String toString() const;
-#endif
-
 private:
     float m_width, m_height;
 };
 
 inline FloatSize& operator+=(FloatSize& a, const FloatSize& b)
 {
     a.setWidth(a.width() + b.width());
     a.setHeight(a.height() + b.height());
     return a;
 }
@@ skipping 53 matching lines @@
 inline IntSize expandedIntSize(const FloatSize& p)
 {
     return IntSize(clampTo<int>(ceilf(p.width())), clampTo<int>(ceilf(p.height())));
 }
 
 inline IntPoint flooredIntPoint(const FloatSize& p)
 {
     return IntPoint(clampTo<int>(floorf(p.width())), clampTo<int>(floorf(p.height())));
 }
 
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const FloatSize&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const FloatSize&);
 
 } // namespace blink
 
 #endif // FloatSize_h