diff --git a/dom/permission/PermissionUtils.cpp b/dom/permission/PermissionUtils.cpp
new file mode 100644
index 000000000000..70a478b4305d
--- /dev/null
+++ b/dom/permission/PermissionUtils.cpp
@@ -0,0 +1,29 @@
+/* -*- 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/. */
+
+#include "PermissionUtils.h"
+
+namespace mozilla {
+namespace dom {
+
+PermissionState
+ActionToPermissionState(uint32_t aAction)
+{
+  switch (aAction) {
+    case nsIPermissionManager::ALLOW_ACTION:
+      return PermissionState::Granted;
+
+    case nsIPermissionManager::DENY_ACTION:
+      return PermissionState::Denied;
+
+    default:
+    case nsIPermissionManager::PROMPT_ACTION:
+      return PermissionState::Prompt;
+  }
+}
+
+} // namespace dom
+} // namespace mozilla
diff --git a/dom/permission/PermissionUtils.h b/dom/permission/PermissionUtils.h
new file mode 100644
index 000000000000..ebf6a43c435b
--- /dev/null
+++ b/dom/permission/PermissionUtils.h
@@ -0,0 +1,20 @@
+/* -*- 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_dom_PermissionUtils_h_
+#define mozilla_dom_PermissionUtils_h_
+
+#include "mozilla/dom/PermissionsBinding.h"
+
+namespace mozilla {
+namespace dom {
+
+PermissionState ActionToPermissionState(uint32_t aAction);
+
+} // namespace dom
+} // namespace mozilla
+
+#endif
diff --git a/dom/permission/Permissions.cpp b/dom/permission/Permissions.cpp
index c7518f9983f2..36e046dd587e 100644
--- a/dom/permission/Permissions.cpp
+++ b/dom/permission/Permissions.cpp
@@ -9,8 +9,8 @@
 #include "mozilla/dom/PermissionsBinding.h"
 #include "mozilla/dom/Promise.h"
 #include "mozilla/Services.h"
-
 #include "nsIPermissionManager.h"
+#include "PermissionUtils.h"
 
 namespace mozilla {
 namespace dom {
@@ -42,22 +42,6 @@ Permissions::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
 
 namespace {
 
-PermissionState
-ActionToPermissionState(uint32_t aAction)
-{
-  switch (aAction) {
-    case nsIPermissionManager::ALLOW_ACTION:
-      return PermissionState::Granted;
-
-    case nsIPermissionManager::DENY_ACTION:
-      return PermissionState::Denied;
-
-    default:
-    case nsIPermissionManager::PROMPT_ACTION:
-      return PermissionState::Prompt;
-  }
-}
-
 nsresult
 CheckPermission(const char* aName,
                 nsPIDOMWindow* aWindow,
diff --git a/dom/permission/moz.build b/dom/permission/moz.build
index b027459d55f2..34e599b2efd0 100644
--- a/dom/permission/moz.build
+++ b/dom/permission/moz.build
@@ -12,6 +12,7 @@ EXPORTS.mozilla.dom += [
 UNIFIED_SOURCES += [
     'Permissions.cpp',
     'PermissionStatus.cpp',
+    'PermissionUtils.cpp',
 ]
 
 EXTRA_COMPONENTS += [