Update {virtual,override} to follow C++11 style in components.

components/proximity_auth/connection_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 "components/proximity_auth/connection.h"
 
 #include "components/proximity_auth/connection_observer.h"
 #include "components/proximity_auth/remote_device.h"
 #include "components/proximity_auth/wire_message.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 17 matching lines @@
   MOCK_METHOD1(SetPaused, void(bool paused));
   MOCK_METHOD0(Connect, void());
   MOCK_METHOD0(Disconnect, void());
   MOCK_METHOD0(CancelConnectionAttempt, void());
   MOCK_METHOD1(SendMessageImplProxy, void(WireMessage* message));
   MOCK_METHOD1(DeserializeWireMessageProxy,
                WireMessage*(bool* is_incomplete_message));
 
   // Gmock only supports copyable types, so create simple wrapper methods for
   // ease of mocking.
-  virtual void SendMessageImpl(scoped_ptr<WireMessage> message) override {
+  void SendMessageImpl(scoped_ptr<WireMessage> message) override {
     SendMessageImplProxy(message.get());
   }
 
-  virtual scoped_ptr<WireMessage> DeserializeWireMessage(
+  scoped_ptr<WireMessage> DeserializeWireMessage(
       bool* is_incomplete_message) override {
     return make_scoped_ptr(DeserializeWireMessageProxy(is_incomplete_message));
   }
 
   using Connection::status;
   using Connection::SetStatus;
   using Connection::OnDidSendMessage;
   using Connection::OnBytesReceived;
 
  private:
@@ skipping 184 matching lines @@
   connection.AddObserver(&observer);
 
   ON_CALL(connection, DeserializeWireMessageProxy(_))
       .WillByDefault(DoAll(SetArgPointee<0>(false),
                            Return(static_cast<WireMessage*>(NULL))));
   EXPECT_CALL(observer, OnMessageReceived(_, _)).Times(0);
   connection.OnBytesReceived(std::string());
 }
 
 }  // namespace proximity_auth