Standardize usage of virtual/override/final in media/

media/midi/usb_midi_output_stream_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/midi/usb_midi_output_stream.h"
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/stringprintf.h"
 #include "media/midi/usb_midi_device.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
 namespace {
 
 template<typename T, size_t N>
 std::vector<T> ToVector(const T((&array)[N])) {
   return std::vector<T>(array, array + N);
 }
 
 class MockUsbMidiDevice : public UsbMidiDevice {
  public:
   MockUsbMidiDevice() {}
-  virtual ~MockUsbMidiDevice() {}
+  ~MockUsbMidiDevice() override {}
 
-  virtual std::vector<uint8> GetDescriptor() override {
-    return std::vector<uint8>();
-  }
+  std::vector<uint8> GetDescriptor() override { return std::vector<uint8>(); }
 
-  virtual void Send(int endpoint_number, const std::vector<uint8>& data)
-      override {
+  void Send(int endpoint_number, const std::vector<uint8>& data) override {
     for (size_t i = 0; i < data.size(); ++i) {
       log_ += base::StringPrintf("0x%02x ", data[i]);
     }
     log_ += base::StringPrintf("(endpoint = %d)\n", endpoint_number);
   }
 
   const std::string& log() const { return log_; }
 
   void ClearLog() { log_ = ""; }
 
@@ skipping 222 matching lines @@
   stream_->Send(ToVector(data));
   EXPECT_EQ("0x24 0xf0 0x00 0x01 "
             "0x25 0xf8 0x00 0x00 "
             "0x25 0xfa 0x00 0x00 "
             "0x27 0x02 0x03 0xf7 (endpoint = 4)\n", device_.log());
 }
 
 }  // namespace
 
 }  // namespace media