replace OVERRIDE and FINAL with override and final in chrome/browser/[a-i]*

chrome/browser/apps/ephemeral_app_browsertest.cc

Index: chrome/browser/apps/ephemeral_app_browsertest.cc
diff --git a/chrome/browser/apps/ephemeral_app_browsertest.cc b/chrome/browser/apps/ephemeral_app_browsertest.cc
index 49a07fd7201c4999556cd04243f9aee4236eb348..0eab2b6c9f27a50b59c81c4f34afee606bbe48de 100644
--- a/chrome/browser/apps/ephemeral_app_browsertest.cc
+++ b/chrome/browser/apps/ephemeral_app_browsertest.cc
@@ -118,7 +118,7 @@ class InstallObserver : public ExtensionRegistryObserver {
       const Extension* extension,
       bool is_update,
       bool from_ephemeral,
-      const std::string& old_name) OVERRIDE {
+      const std::string& old_name) override {
     install_params_.push_back(
         InstallParameters(extension->id(), is_update, from_ephemeral));
   }