Extract permission alias info from PermissionsProvider

extensions/common/extensions_aliases.h

Index: extensions/common/extensions_aliases.h
diff --git a/extensions/common/extensions_aliases.h b/extensions/common/extensions_aliases.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7254e3587c9da18c4540c848fffad6fd278a414
--- /dev/null
+++ b/extensions/common/extensions_aliases.h
@@ -0,0 +1,18 @@
+// Copyright 2016 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 EXTENSIONS_COMMON_EXTENSIONS_ALIASES_H_
+#define EXTENSIONS_COMMON_EXTENSIONS_ALIASES_H_
+
+#include <vector>
+
+#include "extensions/common/alias.h"
+
+namespace extensions {
+
+std::vector<Alias> GetExtensionsPermissionAliases();
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_COMMON_EXTENSIONS_ALIASES_H_