[Fetch API] Fix leaky layout tests.

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

Index: third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/stream-reader.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/stream-reader.js b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/stream-reader.js
index 5ffd8d9d88b1c1cebc462861333f87af9d9a373f..3b0d513e9f905b7fea0ef923fa13673c2716448b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/stream-reader.js
+++ b/third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/stream-reader.js
@@ -11,6 +11,7 @@ promise_test(function(t) {
         reader.releaseLock();
         var another = stream.getReader();
         assert_not_equals(another, reader);
+        another.releaseLock();
       });
   }, 'ReadableStreamReader acquisition / releasing');
 
@@ -40,12 +41,14 @@ promise_test(function(t) {
     return fetch('/fetch/resources/progressive.php').then(function(res) {
         assert_false(res.bodyUsed);
         var reader = res.body.getReader();
-        assert_true(res.bodyUsed);
-        return res.text();
-      }).then(unreached_rejection(t), function() {
-        // text() should fail because bodyUsed is set.
+        assert_false(res.bodyUsed);
+        return res.text().then(unreached_fulfillment(t), function() {
+            // text() should fail because the body is locked.
+            // TODO(yhirano): Use finally once it gets available.
+            reader.releaseLock();
+          });
       });
-  }, 'acquiring a reader should set bodyUsed.');
+  }, 'acquiring a reader should not set bodyUsed.');
 
 promise_test(function(t) {
     var reader;