Stub implementation of Permissions API module.

LayoutTests/http/tests/permissions/resources/test-api-surface.js

Index: LayoutTests/http/tests/permissions/resources/test-api-surface.js
diff --git a/LayoutTests/http/tests/permissions/resources/test-api-surface.js b/LayoutTests/http/tests/permissions/resources/test-api-surface.js
new file mode 100644
index 0000000000000000000000000000000000000000..cb777296c6daf8feb0958c27cb98f314e3413765
--- /dev/null
+++ b/LayoutTests/http/tests/permissions/resources/test-api-surface.js
@@ -0,0 +1,17 @@
+if (self.importScripts) {
+    importScripts('helpers.js');
+
+    if (get_current_scope() == 'ServiceWorker')
+        importScripts('../../serviceworker/resources/worker-testharness.js');
+    else
+        importScripts('../../resources/testharness.js');
+}
+
+test(function() {
+    assert_own_property(self, 'Permissions');
+    assert_own_property(Permissions, 'query');
+
+    assert_own_property(self, 'PermissionStatus');
+}, 'Check the Permissions API surface in the ' + get_current_scope() + ' scope.');
+
+done();