Use NaN/Inf to represent unresolved/indefinite SMILTimes

Source/core/svg/animation/SMILTime.cpp

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #include "config.h"
 
 #include "core/svg/animation/SMILTime.h"
 
 #include <float.h>
 
 using namespace blink;
 
-const double SMILTime::unresolvedValue = DBL_MAX;
-// Just a big value smaller than DBL_MAX. Our times are relative to 0, we don't really need the full range.
-const double SMILTime::indefiniteValue = FLT_MAX;
-
 SMILTime blink::operator+(const SMILTime& a, const SMILTime& b)
 {
     if (a.isUnresolved() || b.isUnresolved())

[fs, 2014/08/19 21:49:43]

Note: With this new representation, this should now simplify to just the last
line, so that's probably a good follow up to this CL =).

         return SMILTime::unresolved();
     if (a.isIndefinite() || b.isIndefinite())
         return SMILTime::indefinite();
     return a.value() + b.value();
 }
 
 SMILTime blink::operator-(const SMILTime& a, const SMILTime& b)
 {
     if (a.isUnresolved() || b.isUnresolved())
         return SMILTime::unresolved();
     if (a.isIndefinite() || b.isIndefinite())
         return SMILTime::indefinite();
     return a.value() - b.value();
 }
 
 SMILTime blink::operator*(const SMILTime& a,  const SMILTime& b)
 {
     if (a.isUnresolved() || b.isUnresolved())
         return SMILTime::unresolved();
     if (!a.value() || !b.value())
         return SMILTime(0);
     if (a.isIndefinite() || b.isIndefinite())
         return SMILTime::indefinite();
     return a.value() * b.value();
 }