Extract permission alias info from PermissionsProvider

extensions/common/extensions_aliases.cc

Index: extensions/common/extensions_aliases.cc
diff --git a/extensions/common/extensions_aliases.cc b/extensions/common/extensions_aliases.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0a5cf68533a32c10f699d7a0c3a4ed56a0a758f3
--- /dev/null
+++ b/extensions/common/extensions_aliases.cc
@@ -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.
+
+#include "extensions/common/extensions_aliases.h"
+
+namespace extensions {
+
+std::vector<Alias> GetExtensionsPermissionAliases() {
+  // In alias constructor, first value is the alias name; second value is the
+  // real name. See also alias.h.
+  return {Alias("alwaysOnTopWindows", "app.window.alwaysOnTop"),
+          Alias("fullscreen", "app.window.fullscreen"),
+          Alias("overrideEscFullscreen", "app.window.fullscreen.overrideEsc"),
+          Alias("unlimited_storage", "unlimitedStorage")};
+}
+
+}  // namespace extensions