Update {virtual,override,final} to follow C++11 style.

components/crash/browser/crash_dump_manager_android.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 COMPONENTS_CRASH_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_
 #define COMPONENTS_CRASH_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_
 
 #include <map>
 
 #include "base/files/file.h"
@@ skipping 21 matching lines @@
 // processes and take the appropriate action when the render process terminates.
 class CrashDumpManager : public content::BrowserChildProcessObserver,
                          public content::NotificationObserver {
  public:
   // The embedder should create a single instance of the CrashDumpManager.
   static CrashDumpManager* GetInstance();
 
   // Should be created on the UI thread.
   explicit CrashDumpManager(const base::FilePath& crash_dump_dir);
 
-  virtual ~CrashDumpManager();
+  ~CrashDumpManager() override;
 
   // Returns a file that should be used to generate a minidump for the process
   // |child_process_id|.
   base::File CreateMinidumpFile(int child_process_id);
 
  private:
   typedef std::map<int, base::FilePath> ChildProcessIDToMinidumpPath;
 
   static void ProcessMinidump(const base::FilePath& minidump_path,
                               base::ProcessHandle pid);
 
   // content::BrowserChildProcessObserver implementation:
-  virtual void BrowserChildProcessHostDisconnected(
+  void BrowserChildProcessHostDisconnected(
       const content::ChildProcessData& data) override;
-  virtual void BrowserChildProcessCrashed(
+  void BrowserChildProcessCrashed(
       const content::ChildProcessData& data) override;
 
   // 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;
 
   // Called on child process exit (including crash).
   void OnChildExit(int child_process_id, base::ProcessHandle pid);
 
   content::NotificationRegistrar notification_registrar_;
 
   // This map should only be accessed with its lock aquired as it is accessed
   // from the PROCESS_LAUNCHER and UI threads.
   base::Lock child_process_id_to_minidump_path_lock_;
   ChildProcessIDToMinidumpPath child_process_id_to_minidump_path_;
 
   base::FilePath crash_dump_dir_;
 
   static CrashDumpManager* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(CrashDumpManager);
 };
 
 }  // namespace breakpad
 
 #endif  // COMPONENTS_CRASH_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_