[DevTools] Show LastModified and ResponseTime of ServiceWorker script in DevTools

LayoutTests/http/tests/inspector/service-workers/service-workers-view.html

Index: LayoutTests/http/tests/inspector/service-workers/service-workers-view.html
diff --git a/LayoutTests/http/tests/inspector/service-workers/service-workers-view.html b/LayoutTests/http/tests/inspector/service-workers/service-workers-view.html
index 3e5343ff71937a395562e5f6d9652a1bdba8d6f6..3ea8e7e275f945436e23747e1e90e6a4a24b6fce 100644
--- a/LayoutTests/http/tests/inspector/service-workers/service-workers-view.html
+++ b/LayoutTests/http/tests/inspector/service-workers/service-workers-view.html
@@ -15,9 +15,22 @@ function test()
     var step = 0;
 
     InspectorTest.addSniffer(WebInspector.ServiceWorkersView.prototype, "_registrationUpdated", registrationUpdated, true);
+    function replaceInnerTextAll(rootElement, selectors, replacementString)
+    {
+        var elements = rootElement.querySelectorAll(selectors);
+        for (var i = 0; i < elements.length; i++)
+            elements[i].innerText = replacementString;
+    }
+    function modifyTestUnfriendlyText(rootElement)
+    {
+        replaceInnerTextAll(rootElement, ".service-worker-script-last-modified", "LAST-MODIFIED");
+        replaceInnerTextAll(rootElement, ".service-worker-script-response-time", "RESPONSE-TIME");
+    }
     function dumpServiceWorkersView()
     {
         var swView = WebInspector.panels.resources.visibleView;
+
+        modifyTestUnfriendlyText(swView._root);
         InspectorTest.addResult("==== ServiceWorkersView ====");
         InspectorTest.addResult(swView._root.querySelector(".service-workers-origin-title").innerText);
         var registrationElements = swView._root.querySelectorAll(".service-workers-registration");