Pepper: Add support for multicast in PPB_UDPSocket API

ppapi/c/private/ppb_udp_socket_private.h

Index: ppapi/c/private/ppb_udp_socket_private.h
diff --git a/ppapi/c/private/ppb_udp_socket_private.h b/ppapi/c/private/ppb_udp_socket_private.h
index d6e283c42cce9b9d417796be9c136f5b553bbc83..6e4640c8f278aca5cfc8d18d5fefd5b0ddfd84b4 100644
--- a/ppapi/c/private/ppb_udp_socket_private.h
+++ b/ppapi/c/private/ppb_udp_socket_private.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From private/ppb_udp_socket_private.idl modified Mon Jun 24 09:53:43 2013. */
+/* From private/ppb_udp_socket_private.idl modified Mon Nov 10 18:30:10 2014. */
 
 #ifndef PPAPI_C_PRIVATE_PPB_UDP_SOCKET_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_UDP_SOCKET_PRIVATE_H_
@@ -40,9 +40,25 @@ typedef enum {
   /* Allow sending and receiving packets sent to and from broadcast
    * addresses. Value's type should be PP_VARTYPE_BOOL. */
   PP_UDPSOCKETFEATURE_PRIVATE_BROADCAST = 1,
+  /* Whether multicast packets sent from the host to the multicast group should
+   * be looped back to the host or not. Value's type should be PP_VARTYPE_BOOL.
+    */
+  PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_LOOP = 2,
+  /* Set time-to-live for multicast packets, from 0 to 255. Value's type should
+   * be PP_VARTYPE_INT32. */
+  PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_TTL = 3,
+  /* Set network interface from which the multicast packets will be sent and
+   * received. Value's type should be PP_VARTYPE_INT32. */
+  PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_IF = 4,
+  /* Join a multicast group and start receiving packets. Value's type should be
+   * PP_VARTYPE_RESOURCE. */
+  PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_JOIN = 5,
+  /* Leave a multicast group previously joined. Value's type should be
+   * PP_VARTYPE_RESOURCE. */
+  PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_LEAVE = 6,
   /* Special value for counting the number of available
    * features. Should not be passed to SetSocketFeature(). */
-  PP_UDPSOCKETFEATURE_PRIVATE_COUNT = 2
+  PP_UDPSOCKETFEATURE_PRIVATE_COUNT = 7
 } PP_UDPSocketFeature_Private;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_UDPSocketFeature_Private, 4);
 /**