Add base::time::FromJavaTime

base/time/time.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/time/time.h"
 
 #include <cmath>
 #include <ios>
 #include <limits>
 #include <ostream>
@@ skipping 185 matching lines @@
     return 0;
   }
   if (is_max()) {
     // Preserve max without offset to prevent overflow.
     return std::numeric_limits<double>::infinity();
   }
   return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
           kMicrosecondsPerMillisecond);
 }
 
+Time Time::FromJavaTime(int64_t ms_since_epoch) {
+  return base::Time::UnixEpoch() +
+         base::TimeDelta::FromMilliseconds(ms_since_epoch);
+}
+
 int64_t Time::ToJavaTime() const {
   if (is_null()) {
     // Preserve 0 so the invalid result doesn't depend on the platform.
     return 0;
   }
   if (is_max()) {
     // Preserve max without offset to prevent overflow.
     return std::numeric_limits<int64_t>::max();
   }
   return ((us_ - kTimeTToMicrosecondsOffset) /
@@ skipping 121 matching lines @@
   return is_in_range(month, 1, 12) &&
          is_in_range(day_of_week, 0, 6) &&
          is_in_range(day_of_month, 1, 31) &&
          is_in_range(hour, 0, 23) &&
          is_in_range(minute, 0, 59) &&
          is_in_range(second, 0, 60) &&
          is_in_range(millisecond, 0, 999);
 }
 
 }  // namespace base