Replace IPC messages in layout_test_render_frame_observer.

content/shell/common/shell_param_traits.cc

Index: content/shell/common/shell_param_traits.cc
diff --git a/content/shell/common/shell_param_traits.cc b/content/shell/common/shell_param_traits.cc
new file mode 100644
index 0000000000000000000000000000000000000000..37f63af9d76c0b7c8efc97496686316cff28f275
--- /dev/null
+++ b/content/shell/common/shell_param_traits.cc
@@ -0,0 +1,29 @@
+// 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 "content/shell/common/shell_param_traits.h"
+
+// Generate param traits size methods.
+#include "ipc/param_traits_size_macros.h"
+namespace IPC {
+#include "content/shell/common/shell_param_traits.h"
+}  // namespace IPC
+
+// Generate param traits write methods.
+#include "ipc/param_traits_write_macros.h"
+namespace IPC {
+#include "content/shell/common/shell_param_traits.h"
+}  // namespace IPC
+
+// Generate param traits read methods.
+#include "ipc/param_traits_read_macros.h"
+namespace IPC {
+#include "content/shell/common/shell_param_traits.h"
+}  // namespace IPC
+
+// Generate param traits log methods.
+#include "ipc/param_traits_log_macros.h"
+namespace IPC {
+#include "content/shell/common/shell_param_traits.h"
+}  // namespace IPC