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

net/base/network_change_notifier_win_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 "base/message_loop/message_loop.h"
 #include "net/base/network_change_notifier.h"
 #include "net/base/network_change_notifier_factory.h"
 #include "net/base/network_change_notifier_win.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::AtLeast;
 using ::testing::Invoke;
 using ::testing::Return;
 using ::testing::StrictMock;
 
 namespace net {
 
 namespace {
 
 // Subclass of NetworkChangeNotifierWin that overrides functions so that no
 // Windows API networking functions are ever called.
 class TestNetworkChangeNotifierWin : public NetworkChangeNotifierWin {
  public:
   TestNetworkChangeNotifierWin() {}
 
-  virtual ~TestNetworkChangeNotifierWin() {
+  ~TestNetworkChangeNotifierWin() override {
     // This is needed so we don't try to stop watching for IP address changes,
     // as we never actually started.
     set_is_watching(false);
   }
 
   // From NetworkChangeNotifierWin.
-  virtual NetworkChangeNotifier::ConnectionType
-      RecomputeCurrentConnectionType() const override {
+  NetworkChangeNotifier::ConnectionType RecomputeCurrentConnectionType()
+      const override {
     return NetworkChangeNotifier::CONNECTION_UNKNOWN;
   }
 
   // From NetworkChangeNotifierWin.
   MOCK_METHOD0(WatchForAddressChangeInternal, bool());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestNetworkChangeNotifierWin);
 };
 
@@ skipping 205 matching lines @@
 }
 
 TEST_F(NetworkChangeNotifierWinTest, NetChangeWinFailSignalTwice) {
   StartWatchingAndSucceed();
   SignalAndFail();
   RetryAndFail();
   RetryAndSucceed();
 }
 
 }  // namespace net