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 130 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 61 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);
 }
 
+// Redeclared here to avoid ODR issues.
+// See platform/testing/GeometryPrinters.h.
+void PrintTo(const LayoutSize&, std::ostream*);
+
 } // namespace blink
 
 #endif // LayoutSize_h