Switch from PrintTo to operator<< for platform printers

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

 /*
  * Copyright (C) 2003, 2006, 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 210 matching lines @@
     return a.location() != b.location() || a.size() != b.size();
 }
 
 #if OS(MACOSX)
 PLATFORM_EXPORT IntRect enclosingIntRect(const CGRect&);
 #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
 PLATFORM_EXPORT IntRect enclosingIntRect(const NSRect&);
 #endif
 #endif
 
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const IntRect&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const IntRect&);
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::IntRect);
 
 #endif // IntRect_h