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

chromeos/dbus/shill_client_unittest_base.h

 // 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.
 
 #ifndef CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 #define CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 27 matching lines @@
 }  // namespace dbus
 
 namespace chromeos {
 
 // A gmock matcher for base::Value types, so we can match them in expectations.
 class ValueMatcher : public MatcherInterface<const base::Value&> {
  public:
   explicit ValueMatcher(const base::Value& value);
 
   // MatcherInterface overrides.
-  virtual bool MatchAndExplain(const base::Value& value,
-                               MatchResultListener* listener) const override;
-  virtual void DescribeTo(::std::ostream* os) const override;
-  virtual void DescribeNegationTo(::std::ostream* os) const override;
+  bool MatchAndExplain(const base::Value& value,
+                       MatchResultListener* listener) const override;
+  void DescribeTo(::std::ostream* os) const override;
+  void DescribeNegationTo(::std::ostream* os) const override;
 
  private:
   scoped_ptr<base::Value> expected_value_;
 };
 
 inline Matcher<const base::Value&> ValueEq(const base::Value& expected_value) {
   return MakeMatcher(new ValueMatcher(expected_value));
 }
 
 // A class to provide functionalities needed for testing Shill D-Bus clients.
@@ skipping 199 matching lines @@
   std::string expected_method_name_;
   // The response which the mock object proxy returns.
   dbus::Response* response_;
   // A callback to intercept and check the method call arguments.
   ArgumentCheckCallback argument_checker_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_