Initializing an appcache host in a worker process.

chrome/worker/worker_webapplicationcachehost_impl.h

+// Copyright (c) 2010 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.
+
+#ifndef CHROME_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_
+#define CHROME_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_
+
+#include "webkit/appcache/web_application_cache_host_impl.h"
+
+// Information used to construct and initialize an appcache host
+// for a worker.
+struct WorkerAppCacheInitInfo {
+  bool is_shared_worker;
+  int parent_process_id;
+  int parent_appcache_host_id;  // Only valid for dedicated workers.
+  int64 main_resource_appcache_id;  // Only valid for shared workers.
+
+  WorkerAppCacheInitInfo()
+      : is_shared_worker(false), parent_process_id(0),
+        parent_appcache_host_id(0), main_resource_appcache_id(0) {
+  }
+  WorkerAppCacheInitInfo(
+      bool is_shared, int process_id, int host_id, int64 cache_id)
+      : is_shared_worker(is_shared), parent_process_id(process_id),
+        parent_appcache_host_id(host_id), main_resource_appcache_id(cache_id) {
+  }
+};
+
+class WorkerWebApplicationCacheHostImpl
+    : public appcache::WebApplicationCacheHostImpl {
+ public:
+  WorkerWebApplicationCacheHostImpl(
+      const WorkerAppCacheInitInfo& init_info,
+      WebKit::WebApplicationCacheHostClient* client);
+
+  // Main resource loading is different for workers. The resource is
+  // loaded by the creator of the worker rather than the worker itself.
+  virtual void willStartMainResourceRequest(WebKit::WebURLRequest&) {}
+  virtual void didReceiveResponseForMainResource(
+      const WebKit::WebURLResponse&) {}
+  virtual void didReceiveDataForMainResource(const char* data, int len) {}
+  virtual void didFinishLoadingMainResource(bool success) {}
+
+  // Cache selection is also different for workers. We know at construction
+  // time what cache to select and do so then.
+  virtual void selectCacheWithoutManifest() {}
+  virtual bool selectCacheWithManifest(const WebKit::WebURL& manifestURL) {
+    return true;
+  }
+};
+
+#endif  // CHROME_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_