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

chrome/browser/extensions/api/command_line_private/command_line_private_apitest.cc

 // Copyright 2013 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.
 
 #include "base/command_line.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 
 namespace {
 // This should be consistent with
 // chrome/test/data/extensions/api_test/command_line/basics/test.js.
 const char kTestCommandLineSwitch[] = "command-line-private-api-test-foo";
 }  // namespace
 
 class CommandLinePrivateApiTest : public ExtensionApiTest {
-  virtual void SetUpCommandLine(base::CommandLine* command_line) OVERRIDE {
+  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(kTestCommandLineSwitch);
   }
 };
 
 IN_PROC_BROWSER_TEST_F(CommandLinePrivateApiTest, Basics) {
   EXPECT_TRUE(RunComponentExtensionTest("command_line/basics")) << message_;
 }