Import wpt@3c8896ae408c8fd594979da7c99970029e7856a7

third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js

Index: third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js b/third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js
index f4145e6217f5fe4d7ce7c1c8124c234838b0c985..d3b81094219780ec3033fff35d03d5b12d2d32a0 100644
--- a/third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js
+++ b/third_party/WebKit/LayoutTests/imported/wpt/service-workers/cache-storage/resources/test-helpers.js
@@ -32,7 +32,7 @@
 function cache_test(test_function, description) {
   promise_test(function(test) {
       return create_temporary_cache(test)
-        .then(test_function);
+        .then(function(cache) { return test_function(cache, test); });
     }, description);
 }
 
@@ -235,3 +235,11 @@ function assert_response_in_array(actual, expected_array, description) {
         }
     }), description);
 }
+
+// Deletes all caches, returning a promise indicating success.
+function delete_all_caches() {
+  return self.caches.keys()
+    .then(function(keys) {
+      return Promise.all(keys.map(self.caches.delete.bind(self.caches)));
+    });
+}