Update from https://crrev.com/316786

cc/scheduler/delay_based_time_source_unittest.cc

 // Copyright 2011 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 "cc/scheduler/delay_based_time_source.h"
 
 #include "base/basictypes.h"
 #include "base/test/test_simple_task_runner.h"
 #include "cc/test/scheduler_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 490 matching lines @@
   // Task will be pending anyway, run it.
   task_runner->RunPendingTasks();
 
   // Start the timer again, but before the next tick time the timer previously
   // planned on using. That same tick time should still be targeted.
   timer->SetNow(timer->Now() + base::TimeDelta::FromMilliseconds(20));
   timer->SetActive(true);
   EXPECT_EQ(13, task_runner->NextPendingTaskDelay().InMilliseconds());
 }
 
-TEST(DelayBasedTimeSourceTest, TestOverflow) {
-  // int(big_now / interval) < 0, so this causes a crash if the number of
-  // intervals elapsed is attempted to be stored in an int.
-  base::TimeDelta interval = base::TimeDelta::FromInternalValue(4000);
-  base::TimeTicks big_now = base::TimeTicks::FromInternalValue(8635916564000);
-
-  scoped_refptr<base::TestSimpleTaskRunner> task_runner =
-      new base::TestSimpleTaskRunner;
-  FakeTimeSourceClient client;
-  scoped_refptr<FakeDelayBasedTimeSource> timer =
-      FakeDelayBasedTimeSource::Create(interval, task_runner.get());
-  timer->SetClient(&client);
-  timer->SetNow(big_now);
-  timer->SetActive(true);
-  EXPECT_EQ(0, task_runner->NextPendingTaskDelay().InMilliseconds());
-}
-
 TEST(DelayBasedTimeSourceTest, TestReturnValueWhenTimerIsDeActivated) {
   scoped_refptr<base::TestSimpleTaskRunner> task_runner =
       new base::TestSimpleTaskRunner;
   FakeTimeSourceClient client;
   scoped_refptr<FakeDelayBasedTimeSource> timer =
       FakeDelayBasedTimeSource::Create(Interval(), task_runner.get());
   timer->SetClient(&client);
 
   timer->SetActive(true);
   task_runner->RunPendingTasks();
 
   // SetActive should return empty TimeTicks when the timer is deactivated.
   base::TimeTicks missed_tick_time = timer->SetActive(false);
   EXPECT_TRUE(missed_tick_time.is_null());
 }
 
 }  // namespace
 }  // namespace cc