Pepper: Add support for multicast in PPB_UDPSocket API

ppapi/tests/test_udp_socket_private.cc

Index: ppapi/tests/test_udp_socket_private.cc
diff --git a/ppapi/tests/test_udp_socket_private.cc b/ppapi/tests/test_udp_socket_private.cc
index ae1b978c298f5d48c8d782792a2ece06f39fadfd..c3f45278b5a1b23a12dda55ae4512091b8608084 100644
--- a/ppapi/tests/test_udp_socket_private.cc
+++ b/ppapi/tests/test_udp_socket_private.cc
@@ -58,6 +58,7 @@ void TestUDPSocketPrivate::RunTests(const std::string& filter) {
   RUN_CALLBACK_TEST(TestUDPSocketPrivate, ConnectFailure, filter);
   RUN_CALLBACK_TEST(TestUDPSocketPrivate, Broadcast, filter);
   RUN_CALLBACK_TEST(TestUDPSocketPrivate, SetSocketFeatureErrors, filter);
+  RUN_CALLBACK_TEST(TestUDPSocketPrivate, Multicast, filter);
 }
 
 std::string TestUDPSocketPrivate::GetLocalAddress(
@@ -164,6 +165,26 @@ std::string TestUDPSocketPrivate::PassMessage(pp::UDPSocketPrivate* target,
   PASS();
 }
 
+std::string TestUDPSocketPrivate::SetMulticastOptions(
+    pp::UDPSocketPrivate* socket) {
+  int32_t rv = socket->SetSocketFeature(
+      PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_LOOP, pp::Var(true));
+  if (rv != PP_OK)
+    return ReportError("PPB_UDPSocket_Private::SetSocketFeature", rv);
+
+  rv = socket->SetSocketFeature(PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_TTL,
+                                pp::Var(1));
+  if (rv != PP_OK)
+    return ReportError("PPB_UDPSocket_Private::SetSocketFeature", rv);
+
+  rv = socket->SetSocketFeature(PP_UDPSOCKETFEATURE_PRIVATE_MULTICAST_IF,
+                                pp::Var(1));
+  if (rv != PP_OK)
+    return ReportError("PPB_UDPSocket_Private::SetSocketFeature", rv);
+
+  PASS();
+}
+
 std::string TestUDPSocketPrivate::TestConnect() {
   pp::UDPSocketPrivate server_socket(instance_), client_socket(instance_);
   PP_NetAddress_Private server_address, client_address;
@@ -257,3 +278,11 @@ std::string TestUDPSocketPrivate::TestSetSocketFeatureErrors() {
   ASSERT_EQ(PP_ERROR_BADARGUMENT, rv);
   PASS();
 }
+
+std::string TestUDPSocketPrivate::TestMulticast() {
+  pp::UDPSocketPrivate server1(instance_), server2(instance_);
+
+  ASSERT_SUBTEST_SUCCESS(SetMulticastOptions(&server1));
+  ASSERT_SUBTEST_SUCCESS(SetMulticastOptions(&server2));
+  PASS();
+}