diff -r 000000000000 -r 6474c204b198 dom/interfaces/permission/nsIPermissionPromptService.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/permission/nsIPermissionPromptService.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+/* 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIContentPermissionRequest;
+
+/**
+ * Generic permission service for access to WebAPIs, hardware, capabilities.
+ */
+[scriptable, uuid(e5f953b3-a6ca-444e-a88d-cdc81383741c)]
+interface nsIPermissionPromptService : nsISupports 
+{
+  /**
+   * Checks if the capability requires a permission, fires the corresponding cancel() 
+   * or allow() method in aRequest after consulting PermissionSettings, etc.
+   */
+  void getPermission(in nsIContentPermissionRequest aRequest);
+};