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

chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc

Index: chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc
diff --git a/chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc b/chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc
index 78fb6cda5b27ebc9f72c6e2824be3408985521f7..f9c7c377adba87c2849dc18f78ec706f9ee43d4c 100644
--- a/chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc
+++ b/chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc
@@ -52,7 +52,7 @@ class FileHandlersMimeUtilTest : public testing::Test {
   FileHandlersMimeUtilTest() {}
   virtual ~FileHandlersMimeUtilTest() {}
 
-  virtual void SetUp() OVERRIDE {
+  virtual void SetUp() override {
     ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
     file_system_context_ =
         content::CreateFileSystemContextForTesting(NULL, data_dir_.path());