Standardize usage of virtual/override/final specifiers.

media/cast/net/cast_transport_sender_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 <gtest/gtest.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 55 matching lines @@
 
 class CastTransportSenderImplTest : public ::testing::Test {
  protected:
   CastTransportSenderImplTest()
       : num_times_callback_called_(0) {
     testing_clock_.Advance(
         base::TimeDelta::FromMilliseconds(kStartMillisecond));
     task_runner_ = new test::FakeSingleThreadTaskRunner(&testing_clock_);
   }
 
-  virtual ~CastTransportSenderImplTest() {}
+  ~CastTransportSenderImplTest() override {}
 
   void InitWithoutLogging() {
     transport_sender_.reset(
         new CastTransportSenderImpl(NULL,
                                     &testing_clock_,
                                     net::IPEndPoint(),
                                     make_scoped_ptr(new base::DictionaryValue),
                                     base::Bind(&UpdateCastTransportStatus),
                                     BulkRawEventsCallback(),
                                     base::TimeDelta(),
@@ skipping 280 matching lines @@
   task_runner_->Sleep(base::TimeDelta::FromMilliseconds(2));
   transport_sender_->OnReceivedCastMessage(kVideoSsrc,
                                            RtcpCastMessageCallback(),
                                            cast_message);
   task_runner_->RunTasks();
   EXPECT_EQ(7, transport_.packets_sent());
 }
 
 }  // namespace cast
 }  // namespace media