Standardize usage of virtual/override/final specifiers.

remoting/protocol/pairing_registry_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 "remoting/protocol/pairing_registry.h"
 
 #include <stdlib.h>
 
 #include <algorithm>
 
@@ skipping 44 matching lines @@
   EXPECT_FALSE(actual.HasKey(PairingRegistry::kSharedSecretKey));
 }
 
 }  // namespace
 
 namespace remoting {
 namespace protocol {
 
 class PairingRegistryTest : public testing::Test {
  public:
-  virtual void SetUp() override {
-    callback_count_ = 0;
-  }
+  void SetUp() override { callback_count_ = 0; }
 
   void set_pairings(scoped_ptr<base::ListValue> pairings) {
     pairings_ = pairings.Pass();
   }
 
   void ExpectSecret(const std::string& expected,
                     PairingRegistry::Pairing actual) {
     EXPECT_EQ(expected, actual.shared_secret());
     ++callback_count_;
   }
@@ skipping 172 matching lines @@
   registry->GetPairing(
       pairing_3.client_id(),
       base::Bind(&MockPairingRegistryCallbacks::GetPairingCallback,
                  base::Unretained(&callbacks)));
 
   run_loop_.Run();
 }
 
 }  // namespace protocol
 }  // namespace remoting