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

chrome/browser/renderer_host/chrome_extension_message_filter.h

 // 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.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_CHROME_EXTENSION_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_RENDERER_HOST_CHROME_EXTENSION_MESSAGE_FILTER_H_
 
 #include <string>
 
 #include "base/sequenced_task_runner_helpers.h"
@@ skipping 17 matching lines @@
 }
 
 // This class filters out incoming Chrome-specific IPC messages from the
 // extension process on the IPC thread.
 class ChromeExtensionMessageFilter : public content::BrowserMessageFilter,
                                      public content::NotificationObserver {
  public:
   ChromeExtensionMessageFilter(int render_process_id, Profile* profile);
 
   // content::BrowserMessageFilter methods:
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
-  virtual void OverrideThreadForMessage(
-      const IPC::Message& message,
-      content::BrowserThread::ID* thread) override;
-  virtual void OnDestruct() const override;
+  bool OnMessageReceived(const IPC::Message& message) override;
+  void OverrideThreadForMessage(const IPC::Message& message,
+                                content::BrowserThread::ID* thread) override;
+  void OnDestruct() const override;
 
  private:
   friend class content::BrowserThread;
   friend class base::DeleteHelper<ChromeExtensionMessageFilter>;
 
-  virtual ~ChromeExtensionMessageFilter();
+  ~ChromeExtensionMessageFilter() override;
 
   // TODO(jamescook): Move these functions into the extensions module. Ideally
   // this would be in extensions::ExtensionMessageFilter but that will require
   // resolving the MessageService and ActivityLog dependencies on src/chrome.
   // http://crbug.com/339637
   void OnOpenChannelToExtension(int routing_id,
                                 const ExtensionMsg_ExternalConnectionInfo& info,
                                 const std::string& channel_name,
                                 bool include_tls_channel_id,
                                 int* port_id);
@@ skipping 35 matching lines @@
       const std::string& extension_id,
       const std::string& function_name);
   void OnAddDOMActionToExtensionActivityLog(
       const std::string& extension_id,
       const ExtensionHostMsg_DOMAction_Params& params);
   void OnAddEventToExtensionActivityLog(
       const std::string& extension_id,
       const ExtensionHostMsg_APIActionOrEvent_Params& params);
 
   // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   const int render_process_id_;
 
   // The Profile associated with our renderer process.  This should only be
   // accessed on the UI thread! Furthermore since this class is refcounted it
   // may outlive |profile_|, so make sure to NULL check if in doubt; async
   // calls and the like.
   Profile* profile_;
 
   scoped_refptr<extensions::InfoMap> extension_info_map_;
 
   content::NotificationRegistrar notification_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionMessageFilter);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_EXTENSION_MESSAGE_FILTER_H_