Make ppapi/proxy child-process only

ppapi/proxy/udp_socket_resource_constants.cc

+// Copyright 2017 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_resource_constants.h"
+
+namespace ppapi {
+namespace proxy {
+
+const int32_t UDPSocketResourceConstants::kMaxWriteSize = 128 * 1024;
+const int32_t UDPSocketResourceConstants::kMaxReadSize = 128 * 1024;
+
+const int32_t UDPSocketResourceConstants::kMaxSendBufferSize =
+    1024 * UDPSocketResourceConstants::kMaxWriteSize;
+const int32_t UDPSocketResourceConstants::kMaxReceiveBufferSize =
+    1024 * UDPSocketResourceConstants::kMaxReadSize;
+
+const size_t UDPSocketResourceConstants::kPluginSendBufferSlots = 8u;
+const size_t UDPSocketResourceConstants::kPluginReceiveBufferSlots = 32u;
+
+}  // namespace proxy
+}  // namespace ppapi