Standardize usage of virtual/override/final in mojo/

mojo/application_manager/background_shell_application_loader.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 MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_
 #define MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/simple_thread.h"
 #include "mojo/application_manager/application_loader.h"
 
 namespace mojo {
 
 // TODO(tim): Eventually this should be Android-only to support services
 // that we need to bundle with the shell (such as NetworkService). Perhaps
 // we should move it to shell/ as well.
 class MOJO_APPLICATION_MANAGER_EXPORT BackgroundShellApplicationLoader
     : public ApplicationLoader,
       public base::DelegateSimpleThread::Delegate {
  public:
   BackgroundShellApplicationLoader(scoped_ptr<ApplicationLoader> real_loader,
                                    const std::string& thread_name,
                                    base::MessageLoop::Type message_loop_type);
-  virtual ~BackgroundShellApplicationLoader();
+  ~BackgroundShellApplicationLoader() override;
 
   // ApplicationLoader overrides:
-  virtual void Load(ApplicationManager* manager,
-                    const GURL& url,
-                    scoped_refptr<LoadCallbacks> callbacks) override;
-  virtual void OnApplicationError(ApplicationManager* manager,
-                                  const GURL& url) override;
+  void Load(ApplicationManager* manager,
+            const GURL& url,
+            scoped_refptr<LoadCallbacks> callbacks) override;
+  void OnApplicationError(ApplicationManager* manager,
+                          const GURL& url) override;
 
  private:
   class BackgroundLoader;
 
   // |base::DelegateSimpleThread::Delegate| method:
-  virtual void Run() override;
+  void Run() override;
 
   // These functions are exected on the background thread. They call through
   // to |background_loader_| to do the actual loading.
   // TODO: having this code take a |manager| is fragile (as ApplicationManager
   // isn't thread safe).
   void LoadOnBackgroundThread(ApplicationManager* manager,
                               const GURL& url,
                               ScopedMessagePipeHandle* shell_handle);
   void OnApplicationErrorOnBackgroundThread(ApplicationManager* manager,
                                             const GURL& url);
@@ skipping 17 matching lines @@
 
   // Lives on |thread_|. Trivial interface that calls through to |loader_|.
   BackgroundLoader* background_loader_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundShellApplicationLoader);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_