diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/time.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/time.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,102 @@
+// Copyright (c) 2006-2008 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.h"
+#include "base/string_util.h"
+#include "base/sys_string_conversions.h"
+#include "prtime.h"
+
+#include "base/logging.h"
+
+namespace base {
+
+// TimeDelta ------------------------------------------------------------------
+
+int TimeDelta::InDays() const {
+  return static_cast<int>(delta_ / Time::kMicrosecondsPerDay);
+}
+
+int TimeDelta::InHours() const {
+  return static_cast<int>(delta_ / Time::kMicrosecondsPerHour);
+}
+
+int TimeDelta::InMinutes() const {
+  return static_cast<int>(delta_ / Time::kMicrosecondsPerMinute);
+}
+
+double TimeDelta::InSecondsF() const {
+  return static_cast<double>(delta_) / Time::kMicrosecondsPerSecond;
+}
+
+int64_t TimeDelta::InSeconds() const {
+  return delta_ / Time::kMicrosecondsPerSecond;
+}
+
+double TimeDelta::InMillisecondsF() const {
+  return static_cast<double>(delta_) / Time::kMicrosecondsPerMillisecond;
+}
+
+int64_t TimeDelta::InMilliseconds() const {
+  return delta_ / Time::kMicrosecondsPerMillisecond;
+}
+
+int64_t TimeDelta::InMicroseconds() const {
+  return delta_;
+}
+
+// Time -----------------------------------------------------------------------
+
+// static
+Time Time::FromTimeT(time_t tt) {
+  if (tt == 0)
+    return Time();  // Preserve 0 so we can tell it doesn't exist.
+  return (tt * kMicrosecondsPerSecond) + kTimeTToMicrosecondsOffset;
+}
+
+time_t Time::ToTimeT() const {
+  if (us_ == 0)
+    return 0;  // Preserve 0 so we can tell it doesn't exist.
+  return (us_ - kTimeTToMicrosecondsOffset) / kMicrosecondsPerSecond;
+}
+
+// static
+Time Time::FromDoubleT(double dt) {
+  return (dt * static_cast<double>(kMicrosecondsPerSecond)) +
+      kTimeTToMicrosecondsOffset;
+}
+
+double Time::ToDoubleT() const {
+  if (us_ == 0)
+    return 0;  // Preserve 0 so we can tell it doesn't exist.
+  return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
+          static_cast<double>(kMicrosecondsPerSecond));
+}
+
+Time Time::LocalMidnight() const {
+  Exploded exploded;
+  LocalExplode(&exploded);
+  exploded.hour = 0;
+  exploded.minute = 0;
+  exploded.second = 0;
+  exploded.millisecond = 0;
+  return FromLocalExploded(exploded);
+}
+
+// static
+bool Time::FromString(const wchar_t* time_string, Time* parsed_time) {
+  DCHECK((time_string != NULL) && (parsed_time != NULL));
+  std::string ascii_time_string = SysWideToUTF8(time_string);
+  if (ascii_time_string.length() == 0)
+    return false;
+  PRTime result_time = 0;
+  PRStatus result = PR_ParseTimeString(ascii_time_string.c_str(), PR_FALSE,
+                                       &result_time);
+  if (PR_SUCCESS != result)
+    return false;
+  result_time += kTimeTToMicrosecondsOffset;
+  *parsed_time = Time(result_time);
+  return true;
+}
+
+}  // namespace base