Standardize usage of virtual/override/final specifiers.

chrome/test/nacl/nacl_browsertest_util.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_TEST_NACL_NACL_BROWSERTEST_UTIL_H_
 #define CHROME_TEST_NACL_NACL_BROWSERTEST_UTIL_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ skipping 41 matching lines @@
 
  private:
   bool test_passed_;
 
   DISALLOW_COPY_AND_ASSIGN(LoadTestMessageHandler);
 };
 
 class NaClBrowserTestBase : public InProcessBrowserTest {
  public:
   NaClBrowserTestBase();
-  virtual ~NaClBrowserTestBase();
+  ~NaClBrowserTestBase() override;
 
   void SetUpCommandLine(base::CommandLine* command_line) override;
 
   void SetUpOnMainThread() override;
 
   // What variant are we running - newlib, glibc, pnacl, etc?
   // This is used to compute what directory we're pulling data from, but it can
   // also be used to affect the behavior of the test.
   virtual base::FilePath::StringType Variant() = 0;
 
@@ skipping 118 matching lines @@
 
 #define NACL_BROWSER_TEST_F(suite, name, body) \
 IN_PROC_BROWSER_TEST_F(suite##Newlib, name) \
 body \
 IN_PROC_BROWSER_TEST_F(suite##GLibc, MAYBE_GLIBC(name)) \
 body \
 IN_PROC_BROWSER_TEST_F(suite##Pnacl, MAYBE_PNACL(name)) \
 body
 
 #endif  // CHROME_TEST_NACL_NACL_BROWSERTEST_UTIL_H_