Pepper: Add support for multicast in PPB_UDPSocket API

ppapi/proxy/udp_socket_private_resource.cc

 // 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.
 
 #include "ppapi/proxy/udp_socket_private_resource.h"
 
 #include "base/logging.h"
 #include "ppapi/c/ppb_udp_socket.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 
@@ skipping 17 matching lines @@
     PP_UDPSocketFeature_Private name,
     PP_Var value) {
   PP_UDPSocket_Option public_name = PP_UDPSOCKET_OPTION_ADDRESS_REUSE;
   switch (name) {
     case PP_UDPSOCKETFEATURE_PRIVATE_ADDRESS_REUSE:
       // |public_name| has been initialized above.
       break;
     case PP_UDPSOCKETFEATURE_PRIVATE_BROADCAST:
       public_name = PP_UDPSOCKET_OPTION_BROADCAST;
       break;
+    case PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_LOOP:
+      public_name = PP_UDPSOCKET_OPTION_MULTICAST_LOOP;
+      break;
+    case PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_TTL:
+      public_name = PP_UDPSOCKET_OPTION_MULTICAST_TTL;
+      break;
+    case PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_IF:
+      public_name = PP_UDPSOCKET_OPTION_MULTICAST_IF;
+      break;
+    case PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_JOIN:
+      public_name = PP_UDPSOCKET_OPTION_MULTICAST_JOIN;
+      break;
+    case PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_LEAVE:
+      public_name = PP_UDPSOCKET_OPTION_MULTICAST_LEAVE;
+      break;
     case PP_UDPSOCKETFEATURE_PRIVATE_COUNT:
       return PP_ERROR_BADARGUMENT;
     default:
       NOTREACHED();
       return PP_ERROR_BADARGUMENT;
   }
   int32_t result = SetOptionImpl(public_name, value, NULL);
   return result == PP_OK_COMPLETIONPENDING ? PP_OK : result;
 }
 
@@ skipping 26 matching lines @@
     scoped_refptr<TrackedCallback> callback) {
   return SendToImpl(buffer, num_bytes, addr, callback);
 }
 
 void UDPSocketPrivateResource::Close() {
   CloseImpl();
 }
 
 }  // namespace proxy
 }  // namespace ppapi