Standardize usage of virtual/override/final specifiers.

media/cast/logging/logging_raw_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 "media/cast/logging/logging_defines.h"
 #include "media/cast/logging/logging_raw.h"
 #include "media/cast/logging/simple_event_subscriber.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 
 class LoggingRawTest : public ::testing::Test {
  protected:
   LoggingRawTest() {
     raw_.AddSubscriber(&event_subscriber_);
   }
 
-  virtual ~LoggingRawTest() { raw_.RemoveSubscriber(&event_subscriber_); }
+  ~LoggingRawTest() override { raw_.RemoveSubscriber(&event_subscriber_); }
 
   LoggingRaw raw_;
   SimpleEventSubscriber event_subscriber_;
   std::vector<FrameEvent> frame_events_;
   std::vector<PacketEvent> packet_events_;
 };
 
 TEST_F(LoggingRawTest, FrameEvent) {
   CastLoggingEvent event_type = FRAME_DECODED;
   EventMediaType media_type = VIDEO_EVENT;
@@ skipping 157 matching lines @@
   EXPECT_EQ(event_type, frame_events_[0].type);
   EXPECT_EQ(media_type, frame_events_[0].media_type);
   EXPECT_EQ(base::TimeDelta(), frame_events_[0].delay_delta);
 
   event_subscriber_2.GetFrameEventsAndReset(&frame_events_);
   EXPECT_TRUE(frame_events_.empty());
 }
 
 }  // namespace cast
 }  // namespace media