Set the request mode and the credentials mode of FetchEvent in the service worker correctly.

third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js

Index: third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js
index 31bdae061e4abb6cd3e4bf275a518d931dc5d9c9..6b413a62d2f0d5339722277586629b77386f0e63 100644
--- a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js
+++ b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/thorough/redirect-loop.js
@@ -5,42 +5,44 @@ if (self.importScripts) {
 
 var TEST_TARGETS = [
   // Redirect loop: same origin -> same origin
-  [REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL) + '&Count=20&mode=cors',
+  [REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL) + '&Count=20&mode=cors' +
+   '&credentials=same-origin',
    [fetchResolved, hasContentLength, hasBody, typeBasic],
    [methodIsGET, authCheck1]],
-  [REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL) + '&Count=21&mode=cors',
+  [REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL) + '&Count=21&mode=cors' +
+   '&credentials=same-origin',
    [fetchRejected]],
 
   // Redirect loop: same origin -> other origin
   [REDIRECT_LOOP_URL + encodeURIComponent(OTHER_BASE_URL + '&ACAOrigin=*') +
-   '&Count=20&mode=cors&method=GET',
+   '&Count=20&mode=cors&credentials=same-origin&method=GET',
    [fetchResolved, noContentLength, noServerHeader, hasBody, typeCors],
    [methodIsGET, authCheckNone]],
   // FIXME: due to the current implementation of Chromium,
   // Count=21 is resolved, Count=22 is rejected.
   // https://crbug.com/353768
   [REDIRECT_LOOP_URL + encodeURIComponent(OTHER_BASE_URL + '&ACAOrigin=*') +
-   '&Count=22&mode=cors&method=GET',
+   '&Count=22&mode=cors&credentials=same-origin&method=GET',
    [fetchRejected]],
 
   // Redirect loop: other origin -> same origin
   [OTHER_REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL + 'ACAOrigin=*') +
-   '&Count=20&mode=cors&method=GET&ACAOrigin=*',
+   '&Count=20&mode=cors&credentials=same-origin&method=GET&ACAOrigin=*',
    [fetchResolved, noContentLength, noServerHeader, hasBody, typeCors],
    [methodIsGET, authCheckNone]],
   [OTHER_REDIRECT_LOOP_URL + encodeURIComponent(BASE_URL + 'ACAOrigin=*') +
-   '&Count=21&mode=cors&method=GET&ACAOrigin=*',
+   '&Count=21&mode=cors&credentials=same-origin&method=GET&ACAOrigin=*',
    [fetchRejected]],
 
   // Redirect loop: other origin -> other origin
   [OTHER_REDIRECT_LOOP_URL +
    encodeURIComponent(OTHER_BASE_URL + 'ACAOrigin=*') +
-   '&Count=20&mode=cors&method=GET&ACAOrigin=*',
+   '&Count=20&mode=cors&credentials=same-origin&method=GET&ACAOrigin=*',
    [fetchResolved, noContentLength, noServerHeader, hasBody, typeCors],
    [methodIsGET, authCheckNone]],
   [OTHER_REDIRECT_LOOP_URL +
    encodeURIComponent(OTHER_BASE_URL + 'ACAOrigin=*') +
-   '&Count=21&mode=cors&method=GET&ACAOrigin=*',
+   '&Count=21&mode=cors&credentials=same-origin&method=GET&ACAOrigin=*',
    [fetchRejected]],
 ];