1 files changed, 60 insertions, 0 deletions
diff --git a/dom/system/OSFileConstants.h b/dom/system/OSFileConstants.h
new file mode 100644
index 000000000..855184d4d
--- /dev/null
+++ b/dom/system/OSFileConstants.h
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_osfileconstants_h__
+#define mozilla_osfileconstants_h__
+
+#include "nsIOSFileConstantsService.h"
+#include "mozilla/Attributes.h"
+
+namespace mozilla {
+
+/**
+ * Perform initialization of this module.
+ *
+ * This function _must_ be called:
+ * - from the main thread;
+ * - before any Chrome Worker is created.
+ *
+ * The function is idempotent.
+ */
+nsresult InitOSFileConstants();
+
+/**
+ * Perform cleanup of this module.
+ *
+ * This function _must_ be called:
+ * - from the main thread;
+ * - after all Chrome Workers are dead.
+ *
+ * The function is idempotent.
+ */
+void CleanupOSFileConstants();
+
+/**
+ * Define OS-specific constants.
+ *
+ * This function creates or uses JS object |OS.Constants| to store
+ * all its constants.
+ */
+bool DefineOSFileConstants(JSContext *cx, JS::Handle<JSObject*> global);
+
+/**
+ * XPConnect initializer, for use in the main thread.
+ */
+class OSFileConstantsService final : public nsIOSFileConstantsService
+{
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOSFILECONSTANTSSERVICE
+  OSFileConstantsService();
+private:
+  ~OSFileConstantsService();
+};
+
+} // namespace mozilla
+
+#endif // mozilla_osfileconstants_h__