Standardize usage of virtual/override/final specifiers.

media/cast/logging/receiver_time_offset_estimator_impl_unittest.cc

 // Copyright 2014 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/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/logging/logging_defines.h"
@@ skipping 10 matching lines @@
       : sender_clock_(new base::SimpleTestTickClock()),
         task_runner_(new test::FakeSingleThreadTaskRunner(sender_clock_)),
         cast_environment_(new CastEnvironment(
             scoped_ptr<base::TickClock>(sender_clock_).Pass(),
             task_runner_,
             task_runner_,
             task_runner_)) {
     cast_environment_->Logging()->AddRawEventSubscriber(&estimator_);
   }
 
-  virtual ~ReceiverTimeOffsetEstimatorImplTest() {
+  ~ReceiverTimeOffsetEstimatorImplTest() override {
     cast_environment_->Logging()->RemoveRawEventSubscriber(&estimator_);
   }
 
   void AdvanceClocks(base::TimeDelta time) {
     sender_clock_->Advance(time);
     receiver_clock_.Advance(time);
   }
 
   base::SimpleTestTickClock* sender_clock_;  // Owned by CastEnvironment.
   scoped_refptr<test::FakeSingleThreadTaskRunner> task_runner_;
@@ skipping 256 matching lines @@
   int64 lower_bound_ms = lower_bound.InMilliseconds();
   int64 upper_bound_ms = upper_bound.InMilliseconds();
   EXPECT_GT(lower_bound_ms, 90);
   EXPECT_LE(lower_bound_ms, true_offset_ms);
   EXPECT_LT(upper_bound_ms, 150);
   EXPECT_GT(upper_bound_ms, true_offset_ms);
 }
 
 }  // namespace cast
 }  // namespace media