3 files changed, 26 insertions, 8 deletions
diff --git a/ipc/ipc.gypi b/ipc/ipc.gypi
index 52b27bf..9118394 100644
--- a/ipc/ipc.gypi
+++ b/ipc/ipc.gypi
@@ -29,6 +29,7 @@
           'ipc_message_macros.h',
           'ipc_message_utils.cc',
           'ipc_message_utils.h',
+          'ipc_param_traits.h',
           'ipc_platform_file.h',
           'ipc_switches.cc',
           'ipc_switches.h',
diff --git a/ipc/ipc_message_utils.h b/ipc/ipc_message_utils.h
index 75b80ae3..34e257a 100644
--- a/ipc/ipc_message_utils.h
+++ b/ipc/ipc_message_utils.h
@@ -16,6 +16,7 @@
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/tuple.h"
+#include "ipc/ipc_param_traits.h"
 #include "ipc/ipc_sync_message.h"
 
 #if defined(COMPILER_GCC)
@@ -132,14 +133,6 @@ class MessageIterator {
 //-----------------------------------------------------------------------------
 // ParamTraits specializations, etc.
 
-template <class P> struct ParamTraits {
-};
-
-template <class P>
-struct SimilarTypeTraits {
-  typedef P Type;
-};
-
 template <class P>
 static inline void WriteParam(Message* m, const P& p) {
   typedef typename SimilarTypeTraits<P>::Type Type;
diff --git a/ipc/ipc_param_traits.h b/ipc/ipc_param_traits.h
new file mode 100644
index 0000000..e90be18
--- /dev/null
+++ b/ipc/ipc_param_traits.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2010 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.
+
+#ifndef IPC_IPC_PARAM_TRAITS_H_
+#define IPC_IPC_PARAM_TRAITS_H_
+#pragma once
+
+// Our IPC system uses the following partially specialized header to define how
+// a data type is read, written and logged in the IPC system.
+
+namespace IPC {
+
+template <class P> struct ParamTraits {
+};
+
+template <class P>
+struct SimilarTypeTraits {
+  typedef P Type;
+};
+
+}  // namespace IPC
+
+#endif  // IPC_IPC_PARAM_TRAITS_H_