base/prefs: Break the dependency in chrome_paths.h

base/prefs/pref_paths.h

+// Copyright 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.
+
+#ifndef BASE_PREFS_PREF_PATHS_H_
+#define BASE_PREFS_PREF_PATHS_H_
+
+#include "base/prefs/base_prefs_export.h"
+
+namespace base {
+namespace prefs {
+
+enum {
+  PATH_START = 5000,
+
+  // Use only for unittests.
+  DIR_TEST_DATA,

[Jói, 2012/11/26 10:42:26]

Have you seen any other paths that might get added to this set (so that there
are multiple values this enum could take)?  Or other places that need the test
data path?  If neither, I think I would prefer to just build the path in the
unit test code.

[tfarina, 2012/11/27 02:15:59]

Done.

+
+  PATH_END
+};
+
+// Call once to register the provider for the path keys defined above.
+BASE_PREFS_EXPORT void RegisterPathProvider();
+
+}  // namespace prefs
+}  // namespace base
+
+#endif  // BASE_PREFS_PREF_PATHS_H_