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

chrome/browser/ui/cocoa/task_manager_mac.h

 // Copyright (c) 2012 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_UI_COCOA_TASK_MANAGER_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <vector>
 
@@ skipping 49 matching lines @@
 
 @interface TaskManagerWindowController (TestingAPI)
 - (NSTableView*)tableView;
 @end
 
 // This class listens to task changed events sent by chrome.
 class TaskManagerMac : public TaskManagerModelObserver,
                        public TableRowNSImageCache::Table {
  public:
   explicit TaskManagerMac(TaskManager* task_manager);
-  virtual ~TaskManagerMac();
+  ~TaskManagerMac() override;
 
   // TaskManagerModelObserver
-  virtual void OnModelChanged() override;
-  virtual void OnItemsChanged(int start, int length) override;
-  virtual void OnItemsAdded(int start, int length) override;
-  virtual void OnItemsRemoved(int start, int length) override;
+  void OnModelChanged() override;
+  void OnItemsChanged(int start, int length) override;
+  void OnItemsAdded(int start, int length) override;
+  void OnItemsRemoved(int start, int length) override;
 
   // Called by the cocoa window controller when its window closes and the
   // controller destroyed itself. Informs the model to stop updating.
   void WindowWasClosed();
 
   // TableRowNSImageCache::Table
-  virtual int RowCount() const override;
-  virtual gfx::ImageSkia GetIcon(int r) const override;
+  int RowCount() const override;
+  gfx::ImageSkia GetIcon(int r) const override;
 
   // Creates the task manager if it doesn't exist; otherwise, it activates the
   // existing task manager window.
   static void Show();
 
   // Hides the task manager if it is showing.
   static void Hide();
 
   // Returns the TaskManager observed by |this|.
   TaskManager* task_manager() { return task_manager_; }
@@ skipping 19 matching lines @@
   TableRowNSImageCache icon_cache_;
 
   // An open task manager window. There can only be one open at a time. This
   // is reset to NULL when the window is closed.
   static TaskManagerMac* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerMac);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_