[ServiceWorker] Introduce the new security restriction of redirected response.

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-redirect-iframe.html

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-redirect-iframe.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-redirect-iframe.html b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-redirect-iframe.html
deleted file mode 100644
index ffd76bfc49908b9b25d10d5671c9ddb7095ea752..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-redirect-iframe.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<script>
-function xhr(url) {
-  return new Promise(function(resolve, reject) {
-      var request = new XMLHttpRequest();
-      request.addEventListener(
-        'error',
-        function(event) { reject(event); });
-      request.addEventListener(
-        'load',
-        function(event) { resolve(request.response); });
-      request.open('GET', url);
-      request.send();
-    });
-}
-
-function load_image(url) {
-  return new Promise(function(resolve, reject) {
-      var img = document.createElement('img');
-      document.body.appendChild(img);
-      img.onload = resolve;
-      img.onerror = reject;
-      img.src = url;
-    });
-}
-
-function load_audio(url) {
-  return new Promise(function(resolve, reject) {
-      var audio = document.createElement('audio');
-      document.body.appendChild(audio);
-      audio.oncanplay = resolve;
-      audio.onerror = reject;
-      audio.src = url;
-    });
-}
-</script>