Add "PRIVATE" to the enum names of some private Pepper networking APIs:

ppapi/tests/test_host_resolver_private.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/tests/test_host_resolver_private.h"
 
 #include "ppapi/c/private/ppb_net_address_private.h"
 #include "ppapi/cpp/module_impl.h"
 #include "ppapi/cpp/private/host_resolver_private.h"
 #include "ppapi/cpp/private/tcp_socket_private.h"
@@ skipping 153 matching lines @@
   ASSERT_SUBTEST_SUCCESS(CheckHTTPResponse(&socket,
                                            "GET / HTTP/1.0\r\n\r\n",
                                            "HTTP"));
   socket.Disconnect();
 
   PASS();
 }
 
 std::string TestHostResolverPrivate::TestResolve() {
   PP_HostResolver_Private_Hint hint;
-  hint.family = PP_NETADDRESSFAMILY_UNSPECIFIED;
-  hint.flags = PP_HOST_RESOLVER_FLAGS_CANONNAME;
+  hint.family = PP_NETADDRESSFAMILY_PRIVATE_UNSPECIFIED;
+  hint.flags = PP_HOST_RESOLVER_PRIVATE_FLAGS_CANONNAME;
   return ParametrizedTestResolve(hint);
 }
 
 std::string TestHostResolverPrivate::TestResolveIPv4() {
   PP_HostResolver_Private_Hint hint;
-  hint.family = PP_NETADDRESSFAMILY_IPV4;
-  hint.flags = PP_HOST_RESOLVER_FLAGS_CANONNAME;
+  hint.family = PP_NETADDRESSFAMILY_PRIVATE_IPV4;
+  hint.flags = PP_HOST_RESOLVER_PRIVATE_FLAGS_CANONNAME;
   return ParametrizedTestResolve(hint);
 }