[shill] Enable IPConfig to Store/Load itself

BUG=chromium-os:17256
TEST=unit

Change-Id: I7792156f95ecb2e17afaf4e3250ff3dbc0e3dac9
Reviewed-on: http://gerrit.chromium.org/gerrit/4602
Tested-by: Chris Masone <cmasone@chromium.org>
Reviewed-by: Chris Masone <cmasone@chromium.org>
diff --git a/key_file_store_unittest.cc b/key_file_store_unittest.cc
index 907ec06..65fa89e 100644
--- a/key_file_store_unittest.cc
+++ b/key_file_store_unittest.cc
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "shill/key_file_store.h"
+
 #include <base/file_util.h>
 #include <base/stl_util-inl.h>
 #include <base/stringprintf.h>
 #include <base/memory/scoped_temp_dir.h>
 #include <gtest/gtest.h>
 
-#include "shill/key_file_store.h"
-
 using std::set;
 using std::string;
 using std::vector;