Standardize usage of virtual/override/final in components/

components/omaha_query_params/omaha_query_params_unittest.cc

 // Copyright 2014 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/strings/stringprintf.h"
 #include "components/omaha_query_params/omaha_query_params.h"
 #include "components/omaha_query_params/omaha_query_params_delegate.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::StringPrintf;
 
 namespace omaha_query_params {
 
 namespace {
 
 bool Contains(const std::string& source, const std::string& target) {
   return source.find(target) != std::string::npos;
 }
 
 class TestOmahaQueryParamsDelegate : public OmahaQueryParamsDelegate {
-  virtual std::string GetExtraParams() override { return "&cat=dog"; }
+  std::string GetExtraParams() override { return "&cat=dog"; }
 };
 
 }  // namespace
 
 void TestParams(OmahaQueryParams::ProdId prod_id, bool extra_params) {
   std::string params = OmahaQueryParams::Get(prod_id);
 
   // This doesn't so much test what the values are (since that would be an
   // almost exact duplication of code with omaha_query_params.cc, and wouldn't
   // really test anything) as it is a verification that all the params are
@@ skipping 14 matching lines @@
   TestParams(OmahaQueryParams::CHROME, false);
 
   TestOmahaQueryParamsDelegate delegate;
   OmahaQueryParams::SetDelegate(&delegate);
 
   TestParams(OmahaQueryParams::CRX, true);
   TestParams(OmahaQueryParams::CHROME, true);
 }
 
 }  // namespace omaha_query_params