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

chrome/browser/ui/cocoa/download/background_theme.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_DOWNLOAD_BACKGROUND_THEME_H_
 #define CHROME_BROWSER_UI_COCOA_DOWNLOAD_BACKGROUND_THEME_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "ui/base/theme_provider.h"
 
 class BackgroundTheme : public ui::ThemeProvider {
  public:
   BackgroundTheme(ui::ThemeProvider* provider);
-  virtual ~BackgroundTheme();
+  ~BackgroundTheme() override;
 
   // Overridden from ui::ThemeProvider:
-  virtual bool UsingSystemTheme() const override;
-  virtual gfx::ImageSkia* GetImageSkiaNamed(int id) const override;
-  virtual SkColor GetColor(int id) const override;
-  virtual int GetDisplayProperty(int id) const override;
-  virtual bool ShouldUseNativeFrame() const override;
-  virtual bool HasCustomImage(int id) const override;
-  virtual base::RefCountedMemory* GetRawData(
-      int id,
-      ui::ScaleFactor scale_factor) const override;
-  virtual NSImage* GetNSImageNamed(int id) const override;
-  virtual NSColor* GetNSImageColorNamed(int id) const override;
-  virtual NSColor* GetNSColor(int id) const override;
-  virtual NSColor* GetNSColorTint(int id) const override;
-  virtual NSGradient* GetNSGradient(int id) const override;
+  bool UsingSystemTheme() const override;
+  gfx::ImageSkia* GetImageSkiaNamed(int id) const override;
+  SkColor GetColor(int id) const override;
+  int GetDisplayProperty(int id) const override;
+  bool ShouldUseNativeFrame() const override;
+  bool HasCustomImage(int id) const override;
+  base::RefCountedMemory* GetRawData(int id, ui::ScaleFactor scale_factor)
+      const override;
+  NSImage* GetNSImageNamed(int id) const override;
+  NSColor* GetNSImageColorNamed(int id) const override;
+  NSColor* GetNSColor(int id) const override;
+  NSColor* GetNSColorTint(int id) const override;
+  NSGradient* GetNSGradient(int id) const override;
 
  private:
   ui::ThemeProvider* provider_;
   base::scoped_nsobject<NSGradient> buttonGradient_;
   base::scoped_nsobject<NSGradient> buttonPressedGradient_;
   base::scoped_nsobject<NSColor> borderColor_;
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_DOWNLOAD_BACKGROUND_THEME_H_