Standardize usage of virtual/override/final specifiers.

media/cast/net/rtp/framer_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/test/simple_test_tick_clock.h"
 #include "media/cast/net/cast_transport_defines.h"
 #include "media/cast/net/rtp/framer.h"
 #include "media/cast/net/rtp/mock_rtp_payload_feedback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 
 class FramerTest : public ::testing::Test {
  protected:
   FramerTest()
       : mock_rtp_payload_feedback_(),
         framer_(&testing_clock_, &mock_rtp_payload_feedback_, 0, true, 0) {
     payload_.assign(kMaxIpPacketSize, 0);
 
     EXPECT_CALL(mock_rtp_payload_feedback_, CastFeedback(testing::_))
         .WillRepeatedly(testing::Return());
   }
 
-  virtual ~FramerTest() {}
+  ~FramerTest() override {}
 
   std::vector<uint8> payload_;
   RtpCastHeader rtp_header_;
   MockRtpPayloadFeedback mock_rtp_payload_feedback_;
   Framer framer_;
   base::SimpleTestTickClock testing_clock_;
 
   DISALLOW_COPY_AND_ASSIGN(FramerTest);
 };
 
@@ skipping 457 matching lines @@
   EXPECT_TRUE(next_frame);
   EXPECT_FALSE(multiple);
   EXPECT_EQ(EncodedFrame::KEY, frame.dependency);
   EXPECT_EQ(256u, frame.frame_id);
   EXPECT_EQ(256u, frame.referenced_frame_id);
   framer_.ReleaseFrame(frame.frame_id);
 }
 
 }  // namespace cast
 }  // namespace media