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

chrome/browser/extensions/extension_keybinding_registry.h

Index: chrome/browser/extensions/extension_keybinding_registry.h
diff --git a/chrome/browser/extensions/extension_keybinding_registry.h b/chrome/browser/extensions/extension_keybinding_registry.h
index 86bb2c687ff6ce2303c29f3f68f444c0b084834e..ddc911afa4f82f24bb83e2da74e9600994d48ee8 100644
--- a/chrome/browser/extensions/extension_keybinding_registry.h
+++ b/chrome/browser/extensions/extension_keybinding_registry.h
@@ -128,15 +128,15 @@ class ExtensionKeybindingRegistry : public content::NotificationObserver,
   // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
+                       const content::NotificationDetails& details) override;
 
   // ExtensionRegistryObserver implementation.
   virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
-                                 const Extension* extension) OVERRIDE;
+                                 const Extension* extension) override;
   virtual void OnExtensionUnloaded(
       content::BrowserContext* browser_context,
       const Extension* extension,
-      UnloadedExtensionInfo::Reason reason) OVERRIDE;
+      UnloadedExtensionInfo::Reason reason) override;
 
   // Returns true if the |extension| matches our extension filter.
   bool ExtensionMatchesFilter(const extensions::Extension* extension);