Make no-location redirect response to be "opaque redirect" when redirect mode is manual.

third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js

Index: third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js
index e6f00e2e8e7e500ff01f2484d578d0a526036f0a..662f235afd1327f6d6ac0bd87a818a4700f04779 100644
--- a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js
+++ b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/fetch.js
@@ -247,6 +247,32 @@ promise_test(function(t) {
   }, 'Manual redirect fetch returns opaque redirect response');
 
 promise_test(function(t) {
+    var redirect_target_url = 'noLocation';
+    var redirect_original_url =
+      BASE_ORIGIN + '/serviceworker/resources/redirect.php?Redirect=' +
+      redirect_target_url;

[hiroshige, 2017/04/12 00:25:42]

nit: just using '/serviceworker/resources/redirect.php?Redirect=noLocation'
might be better because 'noLocation' is not a URL and the name
redirect_target_url might be confusing.

[horo, 2017/04/12 04:48:39]

Done.

+
+    var request = new Request(redirect_original_url, {redirect: 'manual'});
+    assert_equals(request.url, redirect_original_url,
+      'Request\'s url is the original URL');
+    assert_equals(request.redirect, 'manual');
+
+    return fetch(request)
+      .then(function(response) {
+          assert_equals(response.status, 0);
+          assert_equals(response.type, 'opaqueredirect');
+          assert_equals(response.url, request.url);
+          assert_false(response.redirected);
+          if (self.internals) {
+            assert_array_equals(
+                self.internals.getInternalResponseURLList(response),
+                [redirect_original_url]);
+          }
+        });
+  }, 'Manual redirect fetch returns opaque redirect response even if location' +
+     'header is not set');
+
+promise_test(function(t) {
     var redirect_target_url =
       OTHER_ORIGIN + '/fetch/resources/fetch-status.php?status=200';
     var redirect_original_url =