Support ReferrerPolicy in Fetch API

third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html

Index: third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html b/third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html
index 41fd060e445b0b1059e100285c12337c213de713..1a1c564d9af687b341a0b2b9b53b7f72ba0d04e5 100644
--- a/third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html
+++ b/third_party/WebKit/LayoutTests/http/tests/fetch/referrer/origin-when-cross-origin-document.html
@@ -11,20 +11,53 @@
 <script src = "/fetch/resources/fetch-test-helpers.js"></script>
 <script>
 
-var BASE_URL = BASE_ORIGIN + '/fetch/resources/referrer.php';
-var OTHER_URL = OTHER_ORIGIN + '/fetch/resources/referrer.php';
+const BASE_URL = BASE_ORIGIN + '/fetch/resources/referrer.php';
+const OTHER_URL = OTHER_ORIGIN + '/fetch/resources/referrer.php';
+const REFERRER_SOURCE = location.href;
 
 test(function(t) {
     assert_equals(new Request(BASE_URL).referrer, 'about:client');
   }, 'Request referrer property should be immune to the page referrer policy');
 
-var TESTS = [
-  [BASE_URL, 'about:client', location.href],
-  [BASE_URL, '', '[no-referrer]'],
-  [BASE_URL, '/foo', BASE_ORIGIN + '/foo'],
-  [OTHER_URL, 'about:client', BASE_ORIGIN + '/'],
-  [OTHER_URL, '', '[no-referrer]'],
-  [OTHER_URL, '/foo', BASE_ORIGIN + '/'],
+const TESTS = [
+  [BASE_URL, 'about:client', '', REFERRER_SOURCE],
+  [BASE_URL, 'about:client', 'no-referrer', '[no-referrer]'],
+  [BASE_URL, 'about:client', 'no-referrer-when-downgrade', REFERRER_SOURCE],
+  [BASE_URL, 'about:client', 'origin', BASE_ORIGIN + '/'],
+  [BASE_URL, 'about:client', 'origin-when-cross-origin', REFERRER_SOURCE],
+  [BASE_URL, 'about:client', 'unsafe-url', REFERRER_SOURCE],
+  [OTHER_URL, 'about:client', '', BASE_ORIGIN + '/'],
+  [OTHER_URL, 'about:client', 'no-referrer', '[no-referrer]'],
+  [OTHER_URL, 'about:client', 'no-referrer-when-downgrade', REFERRER_SOURCE],
+  [OTHER_URL, 'about:client', 'origin', BASE_ORIGIN + '/'],
+  [OTHER_URL, 'about:client', 'origin-when-cross-origin', BASE_ORIGIN + '/'],
+  [OTHER_URL, 'about:client', 'unsafe-url', REFERRER_SOURCE],
+
+  [BASE_URL, '', '', '[no-referrer]'],
+  [BASE_URL, '', 'no-referrer', '[no-referrer]'],
+  [BASE_URL, '', 'no-referrer-when-downgrade', '[no-referrer]'],
+  [BASE_URL, '', 'origin', '[no-referrer]'],
+  [BASE_URL, '', 'origin-when-cross-origin', '[no-referrer]'],
+  [BASE_URL, '', 'unsafe-url', '[no-referrer]'],
+  [OTHER_URL, '', '', '[no-referrer]'],
+  [OTHER_URL, '', 'no-referrer', '[no-referrer]'],
+  [OTHER_URL, '', 'no-referrer-when-downgrade', '[no-referrer]'],
+  [OTHER_URL, '', 'origin', '[no-referrer]'],
+  [OTHER_URL, '', 'origin-when-cross-origin', '[no-referrer]'],
+  [OTHER_URL, '', 'unsafe-url', '[no-referrer]'],
+
+  [BASE_URL, '/foo', '', BASE_ORIGIN + '/foo'],
+  [BASE_URL, '/foo', 'no-referrer', '[no-referrer]'],
+  [BASE_URL, '/foo', 'no-referrer-when-downgrade', BASE_ORIGIN + '/foo'],
+  [BASE_URL, '/foo', 'origin', BASE_ORIGIN + '/'],
+  [BASE_URL, '/foo', 'origin-when-cross-origin', BASE_ORIGIN + '/foo'],
+  [BASE_URL, '/foo', 'unsafe-url', BASE_ORIGIN + '/foo'],
+  [OTHER_URL, '/foo', '', BASE_ORIGIN + '/'],
+  [OTHER_URL, '/foo', 'no-referrer', '[no-referrer]'],
+  [OTHER_URL, '/foo', 'no-referrer-when-downgrade', BASE_ORIGIN + '/foo'],
+  [OTHER_URL, '/foo', 'origin', BASE_ORIGIN + '/'],
+  [OTHER_URL, '/foo', 'origin-when-cross-origin', BASE_ORIGIN + '/'],
+  [OTHER_URL, '/foo', 'unsafe-url', BASE_ORIGIN + '/foo'],
 ];
 
 add_referrer_tests(TESTS);