51   Interval() : from_(kNone), to_(kNone - 1) {}  // '- 1' for branchless size().  in Interval()
52   Interval(int from, int to) : from_(from), to_(to) {}  in Interval()
56     return Interval(std::min(from_, that.from_), std::max(to_, that.to_));  in Union()
61   bool Contains(int value) const { return (from_ <= value) && (value <= to_); }  in Contains()
64   int to() const { return to_; }  in to()
65   int size() const { return to_ - from_ + 1; }  in size()
71   int to_;  variable
124   bool Contains(base::uc32 i) const { return from_ <= i && i <= to_; }  in Contains()
126   base::uc32 to() const { return to_; }  in to()
127   bool IsEverything(base::uc32 max) const { return from_ == 0 && to_ >= max; }  in IsEverything()
128   bool IsSingleton() const { return from_ == to_; }  in IsSingleton()
145   CharacterRange(base::uc32 from, base::uc32 to) : from_(from), to_(to) {}  in CharacterRange()
150   base::uc32 to_ = 0;  variable