Cleanup extension permissions module.

chrome/browser/extensions/extension_permissions_api_helpers.h

Index: chrome/browser/extensions/extension_permissions_api_helpers.h
diff --git a/chrome/browser/extensions/extension_permissions_api_helpers.h b/chrome/browser/extensions/extension_permissions_api_helpers.h
new file mode 100644
index 0000000000000000000000000000000000000000..563f99e69afef7790484bd31213d81c46734dd6a
--- /dev/null
+++ b/chrome/browser/extensions/extension_permissions_api_helpers.h
@@ -0,0 +1,36 @@
+// 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_HELPERS_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_HELPERS_H_
+#pragma once
+
+#include <string>
+
+#include "base/memory/ref_counted.h"
+
+namespace base {
+class DictionaryValue;
+}
+class ExtensionPermissionSet;
+
+namespace extensions {
+
+namespace permissions_api {
+
+// Converts the permission |set| to a dictionary value.
+base::DictionaryValue* PackPermissionsToValue(
+    const ExtensionPermissionSet* set);
+
+// Converts the |value| to a permission set.
+bool UnpackPermissionsFromValue(base::DictionaryValue* value,
+                                scoped_refptr<ExtensionPermissionSet>* ptr,
+                                bool* bad_message,
+                                std::string* error);
+
+}  // namespace permissions_api
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_API_HELPERS_H__