Standardize usage of virtual/override/final specifiers.

net/dns/dns_config_service_unittest.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 "net/dns/dns_config_service.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/cancelable_callback.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 158 matching lines @@
   // Generate hosts using the given seed.
   DnsHosts MakeHosts(unsigned seed) {
     DnsHosts hosts;
     std::string hosts_content = "127.0.0.1 localhost";
     hosts_content.append(seed, '1');
     ParseHosts(hosts_content, &hosts);
     EXPECT_FALSE(hosts.empty());
     return hosts;
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     quit_on_config_ = false;
 
     service_.reset(new TestDnsConfigService());
     service_->WatchConfig(base::Bind(&DnsConfigServiceTest::OnConfigChanged,
                                      base::Unretained(this)));
     EXPECT_FALSE(last_config_.IsValid());
   }
 
   DnsConfig last_config_;
   bool quit_on_config_;
@@ skipping 153 matching lines @@
                                  base::Unretained(this)));
   base::TimeDelta kTimeout = TestTimeouts::action_max_timeout();
   WaitForConfig(kTimeout);
   ASSERT_TRUE(last_config_.IsValid()) << "Did not receive DnsConfig in " <<
       kTimeout.InSecondsF() << "s";
 }
 #endif  // OS_POSIX || OS_WIN
 
 }  // namespace net