[Fetch] Body consume function should not set bodyUsed flag.

LayoutTests/http/tests/cachestorage/script-tests/cache-put.js

Index: LayoutTests/http/tests/cachestorage/script-tests/cache-put.js
diff --git a/LayoutTests/http/tests/cachestorage/script-tests/cache-put.js b/LayoutTests/http/tests/cachestorage/script-tests/cache-put.js
index cc8c7c9e128c95eb4cae0e21a13a1bcce4e2e1e3..60c1152fcc81a2ce5df38590426d66931aa1a8d0 100644
--- a/LayoutTests/http/tests/cachestorage/script-tests/cache-put.js
+++ b/LayoutTests/http/tests/cachestorage/script-tests/cache-put.js
@@ -312,15 +312,12 @@ cache_test(function(cache) {
     assert_false(response.bodyUsed,
                  '[https://fetch.spec.whatwg.org/#dom-body-bodyused] ' +
                  'Response.bodyUsed should be initially false.');
-    response.text().then(function() {
-      assert_true(
+    return response.text().then(function() {
+      assert_false(
         response.bodyUsed,
         '[https://fetch.spec.whatwg.org/#concept-body-consume-body] ' +
-          'The text() method should consume the body of the response.');
-      return assert_promise_rejects(
-        cache.put(new Request(test_url), response),
-        new TypeError(),
-        'Cache.put should throw a TypeError for a response with used body.');
+          'The text() method should not set "body passed" flag.');
+      return cache.put(new Request(test_url), response);
     });
   }, 'Cache.put with a used response body');