Test for registering the same SW in different frames

LayoutTests/http/tests/serviceworker/multiple-register.html

Index: LayoutTests/http/tests/serviceworker/multiple-register.html
diff --git a/LayoutTests/http/tests/serviceworker/multiple-register.html b/LayoutTests/http/tests/serviceworker/multiple-register.html
index 4e6841925a75b8c717aec21922fc2bb737d6b245..34793a521b1b56bc0735c37e26915f7b361cf00a 100644
--- a/LayoutTests/http/tests/serviceworker/multiple-register.html
+++ b/LayoutTests/http/tests/serviceworker/multiple-register.html
@@ -6,7 +6,7 @@
 var worker_url = 'resources/empty-worker.js';
 
 async_test(function(t) {
-  var scope = 'subsequent-register'
+  var scope = 'scope/subsequent-register';
   var worker;
 
   service_worker_unregister_and_register(t, worker_url, scope)
@@ -28,7 +28,7 @@ async_test(function(t) {
 }, 'Subsequent registrations resolve to the same worker');
 
 async_test(function(t) {
-  var scope = 'concurrent-register'
+  var scope = 'scope/concurrent-register';
   var worker;
 
   navigator.serviceWorker.unregister(scope)
@@ -49,4 +49,24 @@ async_test(function(t) {
       })
     .catch(unreached_rejection(t));
 }, 'Concurrent registrations resolve to the same worker');
+
+async_test(function(t) {
+    var scope = 'scope/multiple-frames';
+    var worker;
+
+    service_worker_unregister_and_register(t, worker_url, scope)
+      .then(function(registered_worker) {
+          worker = registered_worker;
+          return with_iframe('nothing-here.html');
+        })
+      .then(function(frame) {
+          return frame.contentWindow.navigator.serviceWorker.register(
+              worker_url, { scope: scope });
+        })
+      .then(function(registered_worker) {
+          assert_not_equals(registered_worker, worker);
+          service_worker_unregister_and_done(t, scope);
+        })
+      .catch(unreached_rejection(t));
+  }, 'Registrations in separate frames resolve to different workers');
 </script>