Revert of Initial ServiceWorker Cache API polyfill.

Source/modules/serviceworkers/polyfills/cachePolyfill.js

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// A simple, incomplete implementation of the Cache API, intended to facilitate
-// end to end serviceworker testing.
-
-// See https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#cache
-
-// FIXME: Support AbstractResponse/OpaqueResponse correctly.
-// FIXME: Serialize the cache.
-// FIXME: Implement CacheStorage API.
-// FIXME: Bind all function references.
-(function(global) {
-    var _castToRequest = function(item) {
-        if (typeof item === 'string') {
-            item = new Request({
-                url: item,
-            });
-        }
-        return item;
-    };
-
-    var Cache = function() {
-        // An object containing a property for each HTTP fetch method. Those
-        // referenced objects contain a property for each URL, which is the
-        // Response.
-        this.entriesByMethod = {};
-    };
-
-    // FIXME: Should this be in the spec?
-    Cache.prototype.keys = function() {
-        var that = this;
-
-        var flatten = Array.prototype.concat.apply.bind(Array.prototype.concat, []);
-
-        return Promise.resolve(flatten(
-            Object.keys(this.entriesByMethod).map(function(method) {
-                return Object.keys(that.entriesByMethod[method]).map(function(url) {
-                    return new Request({method: method, url: url});
-                });
-            })));
-    };
-
-    // FIXME: Implement this.
-    // FIXME: Should spec rename each --> forEach?
-    Cache.prototype.forEach = Promise.reject.bind(Promise, 'Cache.prototype.forEach() not implemented.');
-    Cache.prototype.each = Promise.reject.bind(Promise, 'Cache.prototype.each() not implemented.');
-
-    Cache.prototype.put = function(request, response) {
-        var that = this;
-
-        return new Promise(function(resolve, reject) {
-            request = _castToRequest(request);
-
-            if (!that.entriesByMethod.hasOwnProperty(request.method)) {
-                that.entriesByMethod[request.method] = {};
-            }
-
-            var entriesByUrl = that.entriesByMethod[request.method];
-            entriesByUrl[request.url] = response;
-
-            resolve();
-        });
-    };
-
-    // FIXME: Implement this.
-    Cache.prototype.add = Promise.reject.bind(Promise, 'Cache.prototype.add() not implemented.');
-
-    // FIXME: Add QueryParams argument.
-    Cache.prototype.delete = function(request) {
-        request = _castToRequest(request);
-
-        var that = this;
-        return new Promise(function(resolve, reject) {
-            if (that.entriesByMethod.hasOwnProperty(request.method)) {
-                var entriesByUrl = that.entriesByMethod[request.method];
-                delete entriesByUrl[request.url];
-            }
-            resolve();
-        });
-    };
-
-    // FIXME: Add QueryParams argument.
-    Cache.prototype.match = function(request) {
-        var that = this;
-
-        return new Promise(function(resolve, reject) {
-            request = _castToRequest(request);
-
-            if (!that.entriesByMethod.hasOwnProperty(request.method)) {
-                reject('not found');
-                return;
-            }
-
-            var entriesByUrl = that.entriesByMethod[request.method];
-
-            if (!entriesByUrl.hasOwnProperty(request.url)) {
-                reject('not found');
-                return;
-            }
-
-            var entry = entriesByUrl[request.url];
-            resolve(entry);
-        });
-    };
-
-    // FIXME: Implement this.
-    Cache.prototype.matchAll = Promise.reject.bind(Promise, 'Cache.prototype.matchAll not implemented.');
-
-    global.Cache = global.Cache || Cache;
-}(self));  // window or worker global scope.