Extensions Cleanup: Simplify how code for IPC::ParamTraits<Manifest::Location> is generated.

extensions/common/manifest_location_param_traits.cc

Index: extensions/common/manifest_location_param_traits.cc
diff --git a/extensions/common/manifest_location_param_traits.cc b/extensions/common/manifest_location_param_traits.cc
deleted file mode 100644
index 047461e9f5a8dcf43ea3d273eb01c8958a7b25e1..0000000000000000000000000000000000000000
--- a/extensions/common/manifest_location_param_traits.cc
+++ /dev/null
@@ -1,32 +0,0 @@
-// 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 "extensions/common/manifest_location_param_traits.h"
-
-// Auto-generate IPC::ParamTraits<> code specializations for sending and
-// receiving enum extensions::Manifest::Location over IPC.
-
-#include "ipc/param_traits_size_macros.h"
-namespace IPC {
-#undef EXTENSIONS_COMMON_MANIFEST_LOCATION_PARAM_TRAITS_H_
-#include "extensions/common/manifest_location_param_traits.h"
-}  // namespace IPC
-
-#include "ipc/param_traits_write_macros.h"
-namespace IPC {
-#undef EXTENSIONS_COMMON_MANIFEST_LOCATION_PARAM_TRAITS_H_
-#include "extensions/common/manifest_location_param_traits.h"
-}  // namespace IPC
-
-#include "ipc/param_traits_read_macros.h"
-namespace IPC {
-#undef EXTENSIONS_COMMON_MANIFEST_LOCATION_PARAM_TRAITS_H_
-#include "extensions/common/manifest_location_param_traits.h"
-}  // namespace IPC
-
-#include "ipc/param_traits_log_macros.h"
-namespace IPC {
-#undef EXTENSIONS_COMMON_MANIFEST_LOCATION_PARAM_TRAITS_H_
-#include "extensions/common/manifest_location_param_traits.h"
-}  // namespace IPC