Add blink-side binding code for navigator.serviceWorker.current

LayoutTests/http/tests/serviceworker/resources/testutils.js

Index: LayoutTests/http/tests/serviceworker/resources/testutils.js
diff --git a/LayoutTests/http/tests/serviceworker/resources/testutils.js b/LayoutTests/http/tests/serviceworker/resources/testutils.js
new file mode 100644
index 0000000000000000000000000000000000000000..8e640693bb74a75ad76c8a979cab46ccaff7fe21
--- /dev/null
+++ b/LayoutTests/http/tests/serviceworker/resources/testutils.js
@@ -0,0 +1,8 @@
+function withIframe(url, f) {

[jsbell, 2014/05/02 19:42:08]

Add to test-helpers.js instead?

[kinuko, 2014/05/05 14:20:27]

Done. (Merged your change)

[kinuko, 2014/05/06 05:19:46]

Done, really this time.

+  var frame = document.createElement('iframe');
+  frame.src = url;
+  frame.onload = function() {
+      f(frame);
+  };
+  document.body.appendChild(frame);
+}