Add an abstraction for a job in the AppCacheRequestHandler class.

content/browser/appcache/appcache_url_loader_job.cc

+// Copyright (c) 2017 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.
+
+#include "content/browser/appcache/appcache_url_loader_job.h"
+#include "content/browser/appcache/appcache_entry.h"
+
+namespace content {
+
+AppCacheURLLoaderJob::~AppCacheURLLoaderJob() {}
+
+void AppCacheURLLoaderJob::Kill() {}
+
+bool AppCacheURLLoaderJob::IsStarted() const {
+  return false;
+}
+
+bool AppCacheURLLoaderJob::IsWaiting() const {
+  return false;
+}
+
+bool AppCacheURLLoaderJob::IsDeliveringAppCacheResponse() const {
+  return false;
+}
+
+bool AppCacheURLLoaderJob::IsDeliveringNetworkResponse() const {
+  return false;
+}
+
+bool AppCacheURLLoaderJob::IsDeliveringErrorResponse() const {
+  return false;
+}
+
+bool AppCacheURLLoaderJob::IsCacheEntryNotFound() const {
+  return false;
+}
+
+void AppCacheURLLoaderJob::DeliverAppCachedResponse(const GURL& manifest_url,
+                                                    int64_t cache_id,
+                                                    const AppCacheEntry& entry,
+                                                    bool is_fallback) {}
+
+void AppCacheURLLoaderJob::DeliverNetworkResponse() {}
+
+void AppCacheURLLoaderJob::DeliverErrorResponse() {}
+
+const GURL& AppCacheURLLoaderJob::GetURL() const {
+  return url_;
+}
+
+AppCacheURLLoaderJob::AppCacheURLLoaderJob() {}
+
+}  // namespace content