Use largest supported date for cookies if timegm overflows

base/time/time_posix.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 <stdint.h>
 #include <sys/time.h>
 #include <time.h>
 #if defined(OS_ANDROID) && !defined(__LP64__)
@@ skipping 320 matching lines @@
 
   if (ExplodedMostlyEquals(to_exploded, exploded)) {
     *time = converted_time;
     return true;
   }
 
   *time = Time(0);
   return false;
 }
 
+Time Time::GetMaxPlatformTime() {
+  const int64_t max_seconds = (sizeof(SysTime) < sizeof(int64_t))
+                              ? std::numeric_limits<SysTime>::max()
+                              : std::numeric_limits<int32_t>::max();
+  int64_t milliseconds = max_seconds * kMillisecondsPerSecond;
+  milliseconds += (kMillisecondsPerSecond - 1);
+  return Time((milliseconds * kMicrosecondsPerMillisecond) +
+              kWindowsEpochDeltaMicroseconds);
+}
+
 // TimeTicks ------------------------------------------------------------------
 // static
 TimeTicks TimeTicks::Now() {
   return TimeTicks(ClockNow(CLOCK_MONOTONIC));
 }
 
 // static
 TimeTicks::Clock TimeTicks::GetClock() {
   return Clock::LINUX_CLOCK_MONOTONIC;
 }
@@ skipping 46 matching lines @@
     result.tv_usec = static_cast<suseconds_t>(Time::kMicrosecondsPerSecond) - 1;
     return result;
   }
   int64_t us = us_ - kTimeTToMicrosecondsOffset;
   result.tv_sec = us / Time::kMicrosecondsPerSecond;
   result.tv_usec = us % Time::kMicrosecondsPerSecond;
   return result;
 }
 
 }  // namespace base