replace OVERRIDE and FINAL with override and final in chrome/browser/extensions/

chrome/browser/extensions/extension_garbage_collector_chromeos.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_EXTENSIONS_EXTENSION_GARBAGE_COLLECTOR_CHROMEOS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_GARBAGE_COLLECTOR_CHROMEOS_H_
 
 #include "chrome/browser/extensions/extension_garbage_collector.h"
 
 namespace extensions {
@@ skipping 12 matching lines @@
   // Enable or disable garbage collection. See |disable_garbage_collection_|.
   void disable_garbage_collection() { disable_garbage_collection_ = true; }
   void enable_garbage_collection() { disable_garbage_collection_ = false; }
 
   // Clear shared_extensions_garbage_collected_ to initiate more than one
   // GC in the same process for testing.
   static void ClearGarbageCollectedForTesting();
 
  private:
   // Overriddes for ExtensionGarbageCollector:
-  virtual void GarbageCollectExtensions() OVERRIDE;
+  virtual void GarbageCollectExtensions() override;
 
   // Return true if there is no extension installation for all active profiles.
   bool CanGarbageCollectSharedExtensions();
 
   // Do GC for shared extensions dir.
   void GarbageCollectSharedExtensions();
 
   // TODO(rkc): HACK alert - this is only in place to allow the
   // kiosk_mode_screensaver to prevent its extension from getting garbage
   // collected. Remove this once KioskModeScreensaver is removed.
   // See crbug.com/280363
   bool disable_garbage_collection_;
 
   // Shared extensions need to be processed only once but instances of this
   // class are created per-profile so this static variable prevents multiple
   // processing.
   static bool shared_extensions_garbage_collected_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionGarbageCollectorChromeOS);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_GARBAGE_COLLECTOR_CHROMEOS_H_