Add platform/geometry pretty printers for logging and testing

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

 /*
  * Copyright (c) 2012, 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 20 matching lines @@
 #ifndef LayoutSize_h
 #define LayoutSize_h
 
 #include "platform/LayoutUnit.h"
 #include "platform/geometry/DoubleSize.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/IntSize.h"
 #include "wtf/Allocator.h"
 #include "wtf/Forward.h"
+#include <iosfwd>
 
 namespace blink {
 
 enum AspectRatioFit {
     AspectRatioFitShrink,
     AspectRatioFitGrow
 };
 
 class PLATFORM_EXPORT LayoutSize {
     DISALLOW_NEW();
@@ skipping 90 matching lines @@
         if ((widthScale > heightScale) != (fit == AspectRatioFitGrow))
             return LayoutSize(height() * aspectRatio.width() / aspectRatio.height(), height());
         return LayoutSize(width(), width() * aspectRatio.height() / aspectRatio.width());
     }
 
     LayoutSize fraction() const
     {
         return LayoutSize(m_width.fraction(), m_height.fraction());
     }
 
-#ifndef NDEBUG
-    String toString() const;
-#endif
-
 private:
     LayoutUnit m_width, m_height;
 };
 
 inline LayoutSize& operator+=(LayoutSize& a, const LayoutSize& b)
 {
     a.setWidth(a.width() + b.width());
     a.setHeight(a.height() + b.height());
     return a;
 }
@@ skipping 60 matching lines @@
 inline IntSize roundedIntSize(const LayoutSize& s)
 {
     return IntSize(s.width().round(), s.height().round());
 }
 
 inline LayoutSize roundedLayoutSize(const FloatSize& s)
 {
     return LayoutSize(s);
 }
 
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const LayoutSize&);
+
 } // namespace blink
 
 #endif // LayoutSize_h