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

ppapi/proxy/net_address_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_NET_ADDRESS_RESOURCE_H_
 #define PPAPI_PROXY_NET_ADDRESS_RESOURCE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ppapi/c/private/ppb_net_address_private.h"
@@ skipping 10 matching lines @@
   NetAddressResource(Connection connection,
                      PP_Instance instance,
                      const PP_NetAddress_IPv4& ipv4_addr);
   NetAddressResource(Connection connection,
                      PP_Instance instance,
                      const PP_NetAddress_IPv6& ipv6_addr);
   NetAddressResource(Connection connection,
                      PP_Instance instance,
                      const PP_NetAddress_Private& private_addr);
 
-  virtual ~NetAddressResource();
+  ~NetAddressResource() override;
 
   // PluginResource implementation.
-  virtual thunk::PPB_NetAddress_API* AsPPB_NetAddress_API() override;
+  thunk::PPB_NetAddress_API* AsPPB_NetAddress_API() override;
 
   // PPB_NetAddress_API implementation.
-  virtual PP_NetAddress_Family GetFamily() override;
-  virtual PP_Var DescribeAsString(PP_Bool include_port) override;
-  virtual PP_Bool DescribeAsIPv4Address(
-      PP_NetAddress_IPv4* ipv4_addr) override;
-  virtual PP_Bool DescribeAsIPv6Address(
-      PP_NetAddress_IPv6* ipv6_addr) override;
-  virtual const PP_NetAddress_Private& GetNetAddressPrivate() override;
+  PP_NetAddress_Family GetFamily() override;
+  PP_Var DescribeAsString(PP_Bool include_port) override;
+  PP_Bool DescribeAsIPv4Address(PP_NetAddress_IPv4* ipv4_addr) override;
+  PP_Bool DescribeAsIPv6Address(PP_NetAddress_IPv6* ipv6_addr) override;
+  const PP_NetAddress_Private& GetNetAddressPrivate() override;
 
  private:
   // TODO(yzshen): Refactor the code so that PPB_NetAddress resource doesn't
   // use PP_NetAddress_Private as storage type.
   PP_NetAddress_Private address_;
 
   DISALLOW_COPY_AND_ASSIGN(NetAddressResource);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_NET_ADDRESS_RESOURCE_H_