Import w3c tests for the service workers

third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-event-test-worker.js

 function handleString(event) {
   event.respondWith(new Response('Test string'));
 }
 
 function handleBlob(event) {
   event.respondWith(new Response(new Blob(['Test blob'])));
 }
 
 function handleReferrer(event) {
   event.respondWith(new Response(new Blob(
     ['Referrer: ' + event.request.referrer])));
 }
 
+function handleReferrerPolicy(event) {
+  event.respondWith(new Response(new Blob(
+    ['ReferrerPolicy: ' + event.request.referrerPolicy])));
+}
+
+function handleReferrerFull(event) {
+  event.respondWith(new Response(new Blob(
+    ['Referrer: ' + event.request.referrer + '\n' +
+     'ReferrerPolicy: ' + event.request.referrerPolicy])));
+}
+
 function handleClientId(event) {
   var body;
   if (event.clientId !== null) {
     body = 'Client ID Found: ' + event.clientId;
   } else {
     body = 'Client ID Not Found';
   }
   event.respondWith(new Response(body));
 }
 
@@ skipping 39 matching lines @@
     event.respondWith(fetch('other.html').then(function(response) {
         lastResponseForUsedCheck = response;
         return response;
       }));
   } else {
     event.respondWith(new Response(
         'bodyUsed: ' + lastResponseForUsedCheck.bodyUsed));
   }
 }
 
-function handleHeaders(event) {
-  const headers = Array.from(event.request.headers);
-  event.respondWith(new Response(JSON.stringify(headers)));
+function handleFragmentCheck(event) {
+  var body;
+  if (event.request.url.indexOf('#') === -1) {
+    body = 'Fragment Not Found';
+  } else {
+    body = 'Fragment Found';
+  }
+  event.respondWith(new Response(body));
+}
+
+function handleCache(event) {
+  event.respondWith(new Response(event.request.cache));
+}
+
+function handleEventSource(event) {
+  if (event.request.mode === 'navigate') {
+    return;
+  }
+  var data = {
+    mode: event.request.mode,
+    cache: event.request.cache,
+    credentials: event.request.credentials
+  };
+  var body = 'data:' + JSON.stringify(data) + '\n\n';
+  event.respondWith(new Response(body, {
+      headers: { 'Content-Type': 'text/event-stream' }
+    }
+  ));
+}
+
+function handleIntegrity(event) {
+  event.respondWith(new Response(event.request.integrity));
 }
 
 self.addEventListener('fetch', function(event) {
     var url = event.request.url;
     var handlers = [
       { pattern: '?string', fn: handleString },
       { pattern: '?blob', fn: handleBlob },
+      { pattern: '?referrerFull', fn: handleReferrerFull },
+      { pattern: '?referrerPolicy', fn: handleReferrerPolicy },
       { pattern: '?referrer', fn: handleReferrer },
       { pattern: '?clientId', fn: handleClientId },
       { pattern: '?ignore', fn: function() {} },
       { pattern: '?null', fn: handleNullBody },
       { pattern: '?fetch', fn: handleFetch },
       { pattern: '?form-post', fn: handleFormPost },
       { pattern: '?multiple-respond-with', fn: handleMultipleRespondWith },
       { pattern: '?used-check', fn: handleUsedCheck },
-      { pattern: '?headers', fn: handleHeaders }
+      { pattern: '?fragment-check', fn: handleFragmentCheck },
+      { pattern: '?cache', fn: handleCache },
+      { pattern: '?eventsource', fn: handleEventSource },
+      { pattern: '?integrity', fn: handleIntegrity },
     ];
 
     var handler = null;
     for (var i = 0; i < handlers.length; ++i) {
       if (url.indexOf(handlers[i].pattern) != -1) {
         handler = handlers[i];
         break;
       }
     }
 
     if (handler) {
       handler.fn(event);
     } else {
       event.respondWith(new Response(new Blob(
         ['Service Worker got an unexpected request: ' + url])));
     }
   });