base::Time multiplicative operator overloading

base/time/time.h

Index: base/time/time.h
diff --git a/base/time/time.h b/base/time/time.h
index 6d618614aef3ed7574f3f279c37805356d935067..b18c0b26d68c1bf8054b059278762fdc3491c62a 100644
--- a/base/time/time.h
+++ b/base/time/time.h
@@ -158,34 +158,30 @@ class BASE_EXPORT TimeDelta {
     return TimeDelta(-delta_);
   }
 
-  // Computations with ints, note that we only allow multiplicative operations
-  // with ints, and additive operations with other deltas.
-  TimeDelta operator*(int64 a) const {
+  // Computations with numeric types.
+  template<typename T>
+  TimeDelta operator*(T a) const {
     return TimeDelta(delta_ * a);
   }
-  TimeDelta operator/(int64 a) const {
+  template<typename T>
+  TimeDelta operator/(T a) const {
     return TimeDelta(delta_ / a);
   }
-  TimeDelta& operator*=(int64 a) {
+  template<typename T>
+  TimeDelta& operator*=(T a) {
     delta_ *= a;
     return *this;
   }
-  TimeDelta& operator/=(int64 a) {
+  template<typename T>
+  TimeDelta& operator/=(T a) {
     delta_ /= a;
     return *this;
   }
+
   int64 operator/(TimeDelta a) const {
     return delta_ / a.delta_;
   }
 
-  // Multiplicative computations with floats.
-  TimeDelta multiply_by(double a) const {
-    return TimeDelta(delta_ * a);
-  }
-  TimeDelta divide_by(double a) const {
-    return TimeDelta(delta_ / a);
-  }
-
   // Defined below because it depends on the definition of the other classes.
   Time operator+(Time t) const;
   TimeTicks operator+(TimeTicks t) const;
@@ -213,7 +209,6 @@ class BASE_EXPORT TimeDelta {
  private:
   friend class Time;
   friend class TimeTicks;
-  friend TimeDelta operator*(int64 a, TimeDelta td);
 
   // Constructs a delta given the duration in microseconds. This is private
   // to avoid confusion by callers with an integer constructor. Use
@@ -225,8 +220,9 @@ class BASE_EXPORT TimeDelta {
   int64 delta_;
 };
 
-inline TimeDelta operator*(int64 a, TimeDelta td) {
-  return TimeDelta(a * td.delta_);
+template<typename T>
+inline TimeDelta operator*(T a, TimeDelta td) {
+  return td * a;
 }
 
 // For logging use only.