Add PermissionStatus.state and deprecate PermissionStatus.status.

Source/modules/permissions/PermissionStatus.idl

Index: Source/modules/permissions/PermissionStatus.idl
diff --git a/Source/modules/permissions/PermissionStatus.idl b/Source/modules/permissions/PermissionStatus.idl
index 61e0b0537e5d995676e6faad1851719c43382251..61354cbb3deb385a324a5917a3ae8cdf1fa1603b 100644
--- a/Source/modules/permissions/PermissionStatus.idl
+++ b/Source/modules/permissions/PermissionStatus.idl
@@ -17,6 +17,8 @@ enum PermissionState {
     Exposed=(Window,Worker),
     RuntimeEnabled=Permissions,
 ] interface PermissionStatus : EventTarget {
-    readonly attribute PermissionState status;
+    [DeprecateAs=PermissionStatusStatus, ImplementedAs=state] readonly attribute PermissionState status;
+
+    readonly attribute PermissionState state;
              attribute EventHandler onchange;
 };