Add platform/geometry pretty printers for logging and testing

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

 /*
  * Copyright (c) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 161 matching lines @@
 {
     return a.x() == b.x() && a.y() == b.y() && a.z() == b.z() && a.width() == b.width()
         && a.height() == b.height() && a.depth() == b.depth();
 }
 
 inline bool operator!=(const FloatBox& a, const FloatBox& b)
 {
     return !(a == b);
 }
 
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const FloatBox&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const FloatBox&);
 
 } // namespace blink
 
 #endif