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

ppapi/proxy/udp_socket_resource.h

 // Copyright 2013 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 PPAPI_PROXY_UDP_SOCKET_RESOURCE_H_
 #define PPAPI_PROXY_UDP_SOCKET_RESOURCE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 #include "ppapi/proxy/udp_socket_resource_base.h"
 #include "ppapi/thunk/ppb_udp_socket_api.h"
 
 namespace ppapi {
 namespace proxy {
 
 class PPAPI_PROXY_EXPORT UDPSocketResource : public UDPSocketResourceBase,
                                              public thunk::PPB_UDPSocket_API {
  public:
   UDPSocketResource(Connection connection, PP_Instance instance);
-  virtual ~UDPSocketResource();
+  ~UDPSocketResource() override;
 
   // PluginResource implementation.
-  virtual thunk::PPB_UDPSocket_API* AsPPB_UDPSocket_API() override;
+  thunk::PPB_UDPSocket_API* AsPPB_UDPSocket_API() override;
 
   // thunk::PPB_UDPSocket_API implementation.
-  virtual int32_t Bind(PP_Resource addr,
-                       scoped_refptr<TrackedCallback> callback) override;
-  virtual PP_Resource GetBoundAddress() override;
-  virtual int32_t RecvFrom(char* buffer,
-                           int32_t num_bytes,
-                           PP_Resource* addr,
-                           scoped_refptr<TrackedCallback> callback) override;
-  virtual int32_t SendTo(const char* buffer,
-                         int32_t num_bytes,
-                         PP_Resource addr,
-                         scoped_refptr<TrackedCallback> callback) override;
-  virtual void Close() override;
-  virtual int32_t SetOption1_0(
+  int32_t Bind(PP_Resource addr,
+               scoped_refptr<TrackedCallback> callback) override;
+  PP_Resource GetBoundAddress() override;
+  int32_t RecvFrom(char* buffer,
+                   int32_t num_bytes,
+                   PP_Resource* addr,
+                   scoped_refptr<TrackedCallback> callback) override;
+  int32_t SendTo(const char* buffer,
+                 int32_t num_bytes,
+                 PP_Resource addr,
+                 scoped_refptr<TrackedCallback> callback) override;
+  void Close() override;
+  int32_t SetOption1_0(
       PP_UDPSocket_Option name,
       const PP_Var& value,
       scoped_refptr<TrackedCallback> callback) override;
-  virtual int32_t SetOption1_1(
+  int32_t SetOption1_1(
       PP_UDPSocket_Option name,
       const PP_Var& value,
       scoped_refptr<TrackedCallback> callback) override;
-  virtual int32_t SetOption(PP_UDPSocket_Option name,
-                            const PP_Var& value,
-                            scoped_refptr<TrackedCallback> callback) override;
-  virtual int32_t JoinGroup(PP_Resource group,
-                            scoped_refptr<TrackedCallback> callback) override;
-  virtual int32_t LeaveGroup(PP_Resource group,
-                             scoped_refptr<TrackedCallback> callback) override;
+  int32_t SetOption(PP_UDPSocket_Option name,
+                    const PP_Var& value,
+                    scoped_refptr<TrackedCallback> callback) override;
+  int32_t JoinGroup(PP_Resource group,
+                    scoped_refptr<TrackedCallback> callback) override;
+  int32_t LeaveGroup(PP_Resource group,
+                     scoped_refptr<TrackedCallback> callback) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UDPSocketResource);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_UDP_SOCKET_RESOURCE_H_