Standardize usage of virtual/override/final in chrome/browser/extensions/

chrome/browser/extensions/api/webrtc_audio_private/webrtc_audio_private_api.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_API_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/system_monitor/system_monitor.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/common/extensions/api/webrtc_audio_private.h"
 #include "content/public/browser/render_view_host.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "media/audio/audio_device_name.h"
 #include "url/gurl.h"
 
 namespace content {
 class ResourceContext;
 }
 
 namespace extensions {
 
 // Listens for device changes and forwards as an extension event.
 class WebrtcAudioPrivateEventService
     : public BrowserContextKeyedAPI,
       public base::SystemMonitor::DevicesChangedObserver {
  public:
   explicit WebrtcAudioPrivateEventService(content::BrowserContext* context);
-  virtual ~WebrtcAudioPrivateEventService();
+  ~WebrtcAudioPrivateEventService() override;
 
   // BrowserContextKeyedAPI implementation.
-  virtual void Shutdown() override;
+  void Shutdown() override;
   static BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>*
       GetFactoryInstance();
   static const char* service_name();
 
   // base::SystemMonitor::DevicesChangedObserver implementation.
-  virtual void OnDevicesChanged(
-      base::SystemMonitor::DeviceType device_type) override;
+  void OnDevicesChanged(base::SystemMonitor::DeviceType device_type) override;
 
  private:
   friend class BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>;
 
   void SignalEvent();
 
   content::BrowserContext* browser_context_;
 };
 
 // Common base for WebrtcAudioPrivate functions, that provides a
 // couple of optionally-used common implementations.
 class WebrtcAudioPrivateFunction : public ChromeAsyncExtensionFunction {
  protected:
   WebrtcAudioPrivateFunction();
-  virtual ~WebrtcAudioPrivateFunction();
+  ~WebrtcAudioPrivateFunction() override;
 
  protected:
   // Retrieves the list of output device names on the appropriate
   // thread. Call from UI thread, callback will occur on IO thread.
   void GetOutputDeviceNames();
 
   // Must override this if you call GetOutputDeviceNames. Called on IO thread.
   virtual void OnOutputDeviceNames(
       scoped_ptr<media::AudioDeviceNames> device_names);
 
@@ skipping 36 matching lines @@
   content::ResourceContext* resource_context() const;
 
  private:
   content::ResourceContext* resource_context_;
 
   DISALLOW_COPY_AND_ASSIGN(WebrtcAudioPrivateFunction);
 };
 
 class WebrtcAudioPrivateGetSinksFunction : public WebrtcAudioPrivateFunction {
  protected:
-  virtual ~WebrtcAudioPrivateGetSinksFunction() {}
+  ~WebrtcAudioPrivateGetSinksFunction() override {}
 
  private:
   DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getSinks",
                              WEBRTC_AUDIO_PRIVATE_GET_SINKS);
 
   // Sequence of events is that we query the list of sinks on the
   // AudioManager's thread, then calculate HMACs on the IO thread,
   // then finish on the UI thread.
-  virtual bool RunAsync() override;
+  bool RunAsync() override;
   void DoQuery();
-  virtual void OnOutputDeviceNames(
+  void OnOutputDeviceNames(
       scoped_ptr<media::AudioDeviceNames> raw_ids) override;
   void DoneOnUIThread();
 };
 
 class WebrtcAudioPrivateGetActiveSinkFunction
     : public WebrtcAudioPrivateFunction {
  protected:
-  virtual ~WebrtcAudioPrivateGetActiveSinkFunction() {}
+  ~WebrtcAudioPrivateGetActiveSinkFunction() override {}
 
  private:
   DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getActiveSink",
                              WEBRTC_AUDIO_PRIVATE_GET_ACTIVE_SINK);
 
-  virtual bool RunAsync() override;
-  virtual void OnControllerList(
-      const content::RenderViewHost::AudioOutputControllerList&
-      controllers) override;
-  virtual void OnHMACCalculated(const std::string& hmac) override;
+  bool RunAsync() override;
+  void OnControllerList(
+      const content::RenderViewHost::AudioOutputControllerList& controllers)
+      override;
+  void OnHMACCalculated(const std::string& hmac) override;
 };
 
 class WebrtcAudioPrivateSetActiveSinkFunction
     : public WebrtcAudioPrivateFunction {
  public:
   WebrtcAudioPrivateSetActiveSinkFunction();
 
  protected:
-  virtual ~WebrtcAudioPrivateSetActiveSinkFunction();
+  ~WebrtcAudioPrivateSetActiveSinkFunction() override;
 
  private:
   DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.setActiveSink",
                              WEBRTC_AUDIO_PRIVATE_SET_ACTIVE_SINK);
 
-  virtual bool RunAsync() override;
-  virtual void OnControllerList(
-      const content::RenderViewHost::AudioOutputControllerList&
-      controllers) override;
-  virtual void OnOutputDeviceNames(
+  bool RunAsync() override;
+  void OnControllerList(
+      const content::RenderViewHost::AudioOutputControllerList& controllers)
+      override;
+  void OnOutputDeviceNames(
       scoped_ptr<media::AudioDeviceNames> device_names) override;
   void SwitchDone();
   void DoneOnUIThread();
 
   int tab_id_;
   std::string sink_id_;
 
   // Filled in by OnControllerList.
   content::RenderViewHost::AudioOutputControllerList controllers_;
 
   // Number of sink IDs we are still waiting for. Can become greater
   // than 0 in OnControllerList, decreases on every OnSinkId call.
   size_t num_remaining_sink_ids_;
 };
 
 class WebrtcAudioPrivateGetAssociatedSinkFunction
     : public WebrtcAudioPrivateFunction {
  public:
   WebrtcAudioPrivateGetAssociatedSinkFunction();
 
  protected:
-  virtual ~WebrtcAudioPrivateGetAssociatedSinkFunction();
+  ~WebrtcAudioPrivateGetAssociatedSinkFunction() override;
 
  private:
   DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getAssociatedSink",
                              WEBRTC_AUDIO_PRIVATE_GET_ASSOCIATED_SINK);
 
-  virtual bool RunAsync() override;
+  bool RunAsync() override;
 
   // This implementation is slightly complicated because of different
   // thread requirements for the various functions we need to invoke.
   //
   // Each worker function will post a task to the appropriate thread
   // for the next one.
   //
   // The sequence of events is:
   // 1. Get the list of source devices on the device thread.
   // 2. Given a source ID for an origin and that security origin, find
@@ skipping 10 matching lines @@
   void GetDevicesOnDeviceThread();
 
   // Takes the parameters of the function, retrieves the raw source
   // device ID, or the empty string if none.
   void GetRawSourceIDOnIOThread();
 
   // Gets the raw sink ID for a raw source ID. Sends it to |CalculateHMAC|.
   void GetAssociatedSinkOnDeviceThread(const std::string& raw_source_id);
 
   // Receives the associated sink ID after its HMAC is calculated.
-  virtual void OnHMACCalculated(const std::string& hmac) override;
+  void OnHMACCalculated(const std::string& hmac) override;
 
   // Accessed from UI thread and device thread, but only on one at a
   // time, no locking needed.
   scoped_ptr<api::webrtc_audio_private::GetAssociatedSink::Params> params_;
 
   // Audio sources (input devices). Filled in by DoWorkOnDeviceThread.
   media::AudioDeviceNames source_devices_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_API_H_