Add platform/geometry pretty printers for logging and testing

third_party/WebKit/Source/platform/geometry/FloatPoint.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  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 96 matching lines @@
     if (!denom)
         return false;
 
     float param = ((d1.x() - p1.x()) * dyLength - (d1.y() - p1.y()) * dxLength) / denom;
 
     intersection.setX(p1.x() + param * pxLength);
     intersection.setY(p1.y() + param * pyLength);
     return true;
 }
 
-#ifndef NDEBUG
 String FloatPoint::toString() const
 {
-    return String::format("%f,%f", x(), y());
+    return String::format("%lg,%lg", x(), y());
 }
-#endif
 
 } // namespace blink