Standardize usage of virtual/override/final specifiers.

media/midi/midi_manager_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/midi_manager.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 79 matching lines @@
   bool wait_for_result_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeMidiManagerClient);
 };
 
 class MidiManagerTest : public ::testing::Test {
  public:
   MidiManagerTest()
       : manager_(new FakeMidiManager),
         message_loop_(new base::MessageLoop) {}
-  virtual ~MidiManagerTest() {}
+  ~MidiManagerTest() override {}
 
  protected:
   void StartTheFirstSession(FakeMidiManagerClient* client) {
     EXPECT_FALSE(manager_->start_initialization_is_called_);
     EXPECT_EQ(0U, manager_->GetClientCount());
     EXPECT_EQ(0U, manager_->GetPendingClientCount());
     manager_->StartSession(client);
     EXPECT_EQ(0U, manager_->GetClientCount());
     EXPECT_EQ(1U, manager_->GetPendingClientCount());
     EXPECT_TRUE(manager_->start_initialization_is_called_);
@@ skipping 148 matching lines @@
   // Temporary until http://crbug.com/371230 is resolved.
   EXPECT_TRUE((result == MIDI_OK) || (result == MIDI_INITIALIZATION_ERROR));
 #else
   EXPECT_EQ(MIDI_OK, result);
 #endif
 }
 
 }  // namespace
 
 }  // namespace media