Expose Cache Storage API in global window/worker scope

LayoutTests/http/tests/cachestorage/resources/test-helpers.js

-/*
- * worker-test-harness should be considered a temporary polyfill around
- * testharness.js for supporting Service Worker based tests. It should not be
- * necessary once the test harness is able to drive worker based tests natively.
- * See https://github.com/w3c/testharness.js/pull/82 for status of effort to
- * update upstream testharness.js. Once the upstreaming is complete, tests that
- * reference worker-test-harness should be updated to directly import
- * testharness.js.
- */
-
-importScripts('/resources/testharness.js');
-
 (function() {
   var next_cache_index = 1;
 
   // Returns a promise that resolves to a newly created Cache object. The
   // returned Cache will be destroyed when |test| completes.
   function create_temporary_cache(test) {
     var uniquifier = String(++next_cache_index);
     var cache_name = self.location.pathname + '/' + uniquifier;
 
     test.add_cleanup(function() {
@@ skipping 17 matching lines @@
 // E.g.:
 //    cache_test(function(cache) {
 //      // Do something with |cache|, which is a Cache object.
 //    }, "Some Cache test");
 function cache_test(test_function, description) {
   promise_test(function(test) {
       return create_temporary_cache(test)
         .then(test_function);
     }, description);
 }