Standardize usage of virtual/override/final specifiers.

media/cast/logging/stats_event_subscriber_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/rand_util.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "media/cast/cast_environment.h"
@@ skipping 20 matching lines @@
             task_runner_,
             task_runner_,
             task_runner_)),
         fake_offset_estimator_(
             base::TimeDelta::FromSeconds(kReceiverOffsetSecs)) {
     receiver_clock_.Advance(base::TimeDelta::FromSeconds(kReceiverOffsetSecs));
     cast_environment_->Logging()->AddRawEventSubscriber(
         &fake_offset_estimator_);
   }
 
-  virtual ~StatsEventSubscriberTest() {
+  ~StatsEventSubscriberTest() override {
     if (subscriber_.get())
       cast_environment_->Logging()->RemoveRawEventSubscriber(subscriber_.get());
     cast_environment_->Logging()->RemoveRawEventSubscriber(
         &fake_offset_estimator_);
   }
 
   void AdvanceClocks(base::TimeDelta delta) {
     sender_clock_->Advance(delta);
     receiver_clock_.Advance(delta);
   }
@@ skipping 425 matching lines @@
   EXPECT_DOUBLE_EQ(it->second, static_cast<double>(num_packets_retransmitted));
 
   it = stats_map.find(StatsEventSubscriber::NUM_PACKETS_RTX_REJECTED);
   ASSERT_TRUE(it != stats_map.end());
 
   EXPECT_DOUBLE_EQ(it->second, static_cast<double>(num_packets_rtx_rejected));
 }
 
 }  // namespace cast
 }  // namespace media