Generate param traits even when shared by mutliple message files.

chrome/common/common_param_traits_macros.h

Index: chrome/common/common_param_traits_macros.h
===================================================================
--- chrome/common/common_param_traits_macros.h	(revision 0)
+++ chrome/common/common_param_traits_macros.h	(revision 0)
@@ -0,0 +1,17 @@
+// 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.
+
+// Singly or multiply-included shared traits file depending upon circumstances.
+// This allows the use of IPC serialization macros in more than one IPC message
+// file. Hence, provide an include guard symbol but no pragma once.
+#ifndef CHROME_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
+#define CHROME_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
+
+#include "chrome/common/content_settings.h"
+#include "ipc/ipc_message_macros.h"
+
+IPC_ENUM_TRAITS(ContentSetting)
+IPC_ENUM_TRAITS(ContentSettingsType)
+
+#endif  // CHROME_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
Property changes on: chrome/common/common_param_traits_macros.h
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Added: svn:eol-style
   + LF