Standardize usage of virtual/override/final in chrome/

chrome/test/nacl/nacl_browsertest_util.cc

 // 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.
 
 #include "chrome/test/nacl/nacl_browsertest_util.h"
 
 #include <stdlib.h>
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/path_service.h"
@@ skipping 91 matching lines @@
 // nacl_integration tests report to their test jig using a series of RPC calls
 // that are encoded as URL requests. When these tests run as browser_tests,
 // they make the same RPC requests, but use the automation channel instead of
 // URL requests. This message handler decodes and responds to these requests.
 class NaClIntegrationMessageHandler : public StructuredMessageHandler {
  public:
   NaClIntegrationMessageHandler();
 
   void Log(const std::string& message);
 
-  virtual MessageResponse HandleStructuredMessage(
-      const std::string& type,
-      base::DictionaryValue* msg) override;
+  MessageResponse HandleStructuredMessage(const std::string& type,
+                                          base::DictionaryValue* msg) override;
 
   bool test_passed() const {
     return test_passed_;
   }
 
  private:
   bool test_passed_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClIntegrationMessageHandler);
 };
@@ skipping 216 matching lines @@
   // to point at the isolated the test extension directory.
   // Otherwise, multiple NaCl extensions tests will end up sharing the
   // same directory when loading the extension files.
   base::FilePath document_root;
   ASSERT_TRUE(GetDocumentRoot(&document_root));
 
   // Document root is relative to source root, and source root may not be CWD.
   command_line->AppendSwitchPath(switches::kLoadExtension,
                                  src_root.Append(document_root));
 }