Standardize usage of virtual/override/final specifiers.

media/cast/logging/encoding_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/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/logging/encoding_event_subscriber.h"
@@ skipping 29 matching lines @@
             task_runner_)),
         first_rtp_timestamp_(0) {}
 
   void Init(EventMediaType event_media_type) {
     DCHECK(!event_subscriber_);
     event_subscriber_.reset(new EncodingEventSubscriber(event_media_type, 10));
     cast_environment_->Logging()->AddRawEventSubscriber(
         event_subscriber_.get());
   }
 
-  virtual ~EncodingEventSubscriberTest() {
+  ~EncodingEventSubscriberTest() override {
     if (event_subscriber_) {
       cast_environment_->Logging()->RemoveRawEventSubscriber(
           event_subscriber_.get());
     }
   }
 
   void GetEventsAndReset() {
     event_subscriber_->GetEventsAndReset(
         &metadata_, &frame_events_, &packet_events_);
     first_rtp_timestamp_ = metadata_.first_rtp_timestamp();
@@ skipping 598 matching lines @@
   EXPECT_EQ(kMaxEventsPerProto,
       packet_event->base_packet_event(0).event_type_size());
 
   ++packet_it;
   packet_event = *packet_it;
   EXPECT_EQ(1, packet_event->base_packet_event(0).event_type_size());
 }
 
 }  // namespace cast
 }  // namespace media