Fix for default value of FetchEvent.cancellable

LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js

Index: LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js
diff --git a/LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js b/LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js
index cacf87bb68eabb2990ed4f06e54da554d67a18cd..00f4f9d40b68f27c52832dcc1254466f64487a66 100644
--- a/LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js
+++ b/LayoutTests/http/tests/serviceworker/resources/interfaces-worker.js
@@ -79,16 +79,16 @@ test(function() {
       'FetchEvent', 'Type of FetchEvent should be FetchEvent');
     assert_equals(
       new FetchEvent('FetchEvent').cancelable,
-      true, 'Default FetchEvent.cancelable should be true');
+      false, 'Default FetchEvent.cancelable should be false');
     assert_equals(
       new FetchEvent('FetchEvent').bubbles,
-      false, 'Default FetchEvent.bubbles should be true');
+      false, 'Default FetchEvent.bubbles should be false');
     assert_equals(
       new FetchEvent('FetchEvent').isReload,
       false, 'Default FetchEvent.isReload should be false');
     assert_equals(
       new FetchEvent('FetchEvent', {cancelable: false}).cancelable,
-      true, 'FetchEvent.cancelable should be true');
+      false, 'FetchEvent.cancelable should be false');
     assert_equals(
       new FetchEvent('FetchEvent', {isReload : true}).isReload, true,
       'FetchEvent.isReload with option {isReload : true} should be true');