45 class TimeTicks;  variable
138   TimeTicks operator+(TimeTicks t) const;
162   friend class TimeTicks;  variable
453 class BASE_API TimeTicks {
455   TimeTicks() : ticks_(0) {  in TimeTicks()  function
461   static TimeTicks Now();
467   static TimeTicks HighResNow();
488   TimeTicks& operator=(TimeTicks other) {
494   TimeDelta operator-(TimeTicks other) const {
499   TimeTicks& operator+=(TimeDelta delta) {
503   TimeTicks& operator-=(TimeDelta delta) {
509   TimeTicks operator+(TimeDelta delta) const {
510     return TimeTicks(ticks_ + delta.delta_);
512   TimeTicks operator-(TimeDelta delta) const {
513     return TimeTicks(ticks_ - delta.delta_);
517   bool operator==(TimeTicks other) const {
520   bool operator!=(TimeTicks other) const {
523   bool operator<(TimeTicks other) const {
526   bool operator<=(TimeTicks other) const {
529   bool operator>(TimeTicks other) const {
532   bool operator>=(TimeTicks other) const {
542   explicit TimeTicks(int64 ticks) : ticks_(ticks) {  in TimeTicks()  function
554 inline TimeTicks TimeDelta::operator+(TimeTicks t) const {
555   return TimeTicks(t.ticks_ + delta_);