Standardize usage of virtual/override/final in media/

media/audio/sounds/sounds_manager.cc

 // Copyright 2013 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/audio/sounds/sounds_manager.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/sounds/audio_stream_handler.h"
 
 namespace media {
 
 namespace {
 
 SoundsManager* g_instance = NULL;
 bool g_initialized_for_testing = false;
 
 // SoundsManagerImpl ---------------------------------------------------
 
 class SoundsManagerImpl : public SoundsManager {
  public:
   SoundsManagerImpl();
-  virtual ~SoundsManagerImpl();
+  ~SoundsManagerImpl() override;
 
   // SoundsManager implementation:
-  virtual bool Initialize(SoundKey key,
-                          const base::StringPiece& data) override;
-  virtual bool Play(SoundKey key) override;
-  virtual base::TimeDelta GetDuration(SoundKey key) override;
+  bool Initialize(SoundKey key, const base::StringPiece& data) override;
+  bool Play(SoundKey key) override;
+  base::TimeDelta GetDuration(SoundKey key) override;
 
  private:
   base::hash_map<SoundKey, linked_ptr<AudioStreamHandler> > handlers_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(SoundsManagerImpl);
 };
 
 SoundsManagerImpl::SoundsManagerImpl()
     : task_runner_(AudioManager::Get()->GetTaskRunner()) {
@@ skipping 64 matching lines @@
 
 // static
 void SoundsManager::InitializeForTesting(SoundsManager* manager) {
   CHECK(!g_instance) << "SoundsManager is already initialized.";
   CHECK(manager);
   g_instance = manager;
   g_initialized_for_testing = true;
 }
 
 }  // namespace media