Switch from PrintTo to operator<< for platform printers

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

 /*
  * Copyright (C) 2008 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 171 matching lines @@
 }
 
 inline bool operator!=(const FloatQuad& a, const FloatQuad& b)
 {
     return a.p1() != b.p1() ||
            a.p2() != b.p2() ||
            a.p3() != b.p3() ||
            a.p4() != b.p4();
 }
 
-
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const FloatQuad&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const FloatQuad&);
 
 } // namespace blink
 
 #endif // FloatQuad_h