Fixing Time::Max()'s behavior with Time::ToTimeT() and friends.

base/time_win.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.
 
 
 // Windows Timer Primer
 //
 // A good article:  http://www.ddj.com/windows/184416651
 // A good mozilla bug:  http://bugzilla.mozilla.org/show_bug.cgi?id=363258
 //
@@ skipping 123 matching lines @@
 
 // static
 Time Time::NowFromSystemTime() {
   // Force resync.
   InitializeClock();
   return Time(initial_time);
 }
 
 // static
 Time Time::FromFileTime(FILETIME ft) {
+  if (bit_cast<int64, FILETIME>(ft) == 0)
+    return Time();
+  if (ft.dwHighDateTime == std::numeric_limits<DWORD>::max() &&
+      ft.dwLowDateTime == std::numeric_limits<DWORD>::max())
+    return Max();
   return Time(FileTimeToMicroseconds(ft));
 }
 
 FILETIME Time::ToFileTime() const {
+  if (is_null())
+    return bit_cast<FILETIME, int64>(0);
+  if (is_max()) {
+    FILETIME result;
+    result.dwHighDateTime = std::numeric_limits<DWORD>::max();
+    result.dwLowDateTime = std::numeric_limits<DWORD>::max();
+    return result;
+  }
   FILETIME utc_ft;
   MicrosecondsToFileTime(us_, &utc_ft);
   return utc_ft;
 }
 
 // static
 void Time::EnableHighResolutionTimer(bool enable) {
   // Test for single-threaded access.
   static PlatformThreadId my_thread = PlatformThread::CurrentId();
   DCHECK(PlatformThread::CurrentId() == my_thread);
@@ skipping 309 matching lines @@
   return HighResNowSingleton::GetInstance()->IsUsingHighResClock();
 }
 
 // TimeDelta ------------------------------------------------------------------
 
 // static
 TimeDelta TimeDelta::FromQPCValue(LONGLONG qpc_value) {
   return TimeDelta(
       HighResNowSingleton::GetInstance()->QPCValueToMicroseconds(qpc_value));
 }