Standardize usage of virtual/override/final in remoting/

remoting/client/plugin/pepper_port_allocator.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 REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/cpp/instance_handle.h"
 #include "third_party/libjingle/source/talk/p2p/client/httpportallocator.h"
 
 namespace remoting {
 
 // An implementation of cricket::PortAllocator for libjingle that is
 // used by the client plugin. There are two differences from
 // cricket::HttpPortAllocator:
 //   * PepperPortAllocator uses Pepper URLLoader API when creating
 //     relay sessions.
 //   * PepperPortAllocator resolves STUN DNS names and passes IP
 //     addresses to BasicPortAllocator (it uses HostResolverPrivate API
 //     for that). This is needed because libjingle's DNS resolution
 //     code doesn't work in sandbox.
 class PepperPortAllocator : public cricket::HttpPortAllocatorBase {
  public:
   static scoped_ptr<PepperPortAllocator> Create(
       const pp::InstanceHandle& instance);
-  virtual ~PepperPortAllocator();
+  ~PepperPortAllocator() override;
 
   // cricket::HttpPortAllocatorBase overrides.
-  virtual cricket::PortAllocatorSession* CreateSessionInternal(
+  cricket::PortAllocatorSession* CreateSessionInternal(
       const std::string& content_name,
       int component,
       const std::string& ice_username_fragment,
       const std::string& ice_password) override;
 
  private:
   PepperPortAllocator(
       const pp::InstanceHandle& instance,
       scoped_ptr<rtc::NetworkManager> network_manager,
       scoped_ptr<rtc::PacketSocketFactory> socket_factory);
 
   pp::InstanceHandle instance_;
   scoped_ptr<rtc::NetworkManager> network_manager_;
   scoped_ptr<rtc::PacketSocketFactory> socket_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPortAllocator);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_