Standardize usage of virtual/override/final in remoting/

remoting/client/plugin/pepper_address_resolver.h

 // 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.
 
 #ifndef REMOTING_CLIENT_PLUGIN_PEPPER_ADDRESS_RESOLVER_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_ADDRESS_RESOLVER_H_
 
 #include "ppapi/cpp/host_resolver.h"
 #include "ppapi/utility/completion_callback_factory.h"
 #include "third_party/webrtc/base/asyncresolverinterface.h"
 
 namespace remoting {
 
 // rtc::AsyncResolverInterface implementation that uses Pepper to resolve
 // addresses.
 class PepperAddressResolver : public rtc::AsyncResolverInterface {
  public:
   explicit PepperAddressResolver(const pp::InstanceHandle& instance);
-  virtual ~PepperAddressResolver();
+  ~PepperAddressResolver() override;
 
   // rtc::AsyncResolverInterface.
-  virtual void Start(const rtc::SocketAddress& addr) override;
-  virtual bool GetResolvedAddress(int family,
-                                  rtc::SocketAddress* addr) const override;
-  virtual int GetError() const override;
-  virtual void Destroy(bool wait) override;
+  void Start(const rtc::SocketAddress& addr) override;
+  bool GetResolvedAddress(int family, rtc::SocketAddress* addr) const override;
+  int GetError() const override;
+  void Destroy(bool wait) override;
 
  private:
   void OnResolved(int32_t result);
 
   pp::HostResolver resolver_;
 
   rtc::SocketAddress ipv4_address_;
   rtc::SocketAddress ipv6_address_;
 
   int error_;
 
   pp::CompletionCallbackFactory<PepperAddressResolver> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperAddressResolver);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_ADDRESS_RESOLVER_H_