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

chrome/browser/extensions/api/commands/command_service.h

Index: chrome/browser/extensions/api/commands/command_service.h
diff --git a/chrome/browser/extensions/api/commands/command_service.h b/chrome/browser/extensions/api/commands/command_service.h
index 1304f9a02b2e7c03d9974e3dcbaa9f9a19ea86ee..7f39b7d4c336dc40094111b0e7f6b27cb4ffca3c 100644
--- a/chrome/browser/extensions/api/commands/command_service.h
+++ b/chrome/browser/extensions/api/commands/command_service.h
@@ -184,11 +184,11 @@ class CommandService : public BrowserContextKeyedAPI,
       const Extension* extension,
       bool is_update,
       bool from_ephemeral,
-      const std::string& old_name) OVERRIDE;
+      const std::string& old_name) override;
   virtual void OnExtensionUninstalled(
       content::BrowserContext* browser_context,
       const Extension* extension,
-      extensions::UninstallReason reason) OVERRIDE;
+      extensions::UninstallReason reason) override;
 
   // Updates keybindings for a given |extension|'s page action, browser action
   // and named commands. Assigns new keybindings and removes relinquished