1 files changed, 21 insertions, 0 deletions
diff --git a/ipc/chromium/src/mojo/core/ports/user_message.cc b/ipc/chromium/src/mojo/core/ports/user_message.cc
new file mode 100644
index 0000000000..1aadb21425
--- /dev/null
+++ b/ipc/chromium/src/mojo/core/ports/user_message.cc
@@ -0,0 +1,21 @@
+// 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 "mojo/core/ports/user_message.h"
+
+namespace mojo {
+namespace core {
+namespace ports {
+
+UserMessage::UserMessage(const TypeInfo* type_info) : type_info_(type_info) {}
+
+UserMessage::~UserMessage() = default;
+
+bool UserMessage::WillBeRoutedExternally(UserMessageEvent&) { return true; }
+
+size_t UserMessage::GetSizeIfSerialized() const { return 0; }
+
+}  // namespace ports
+}  // namespace core
+}  // namespace mojo