Tell the AppCacheService which request context to use when fetching resources...

webkit/appcache/appcache_service.h

 // Copyright (c) 2009 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 WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
 #define WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/hash_tables.h"
 #include "base/file_path.h"
+#include "base/ref_counted.h"
+#include "net/url_request/url_request_context.h"
 #include "googleurl/src/gurl.h"
 
 namespace appcache {
 
 class AppCache;
 class AppCacheBackendImpl;
 class AppCacheGroup;
 
 // Class that manages the application cache service. Sends notifications
-// to many frontends.  One instance per user-profile.
+// to many frontends.  One instance per user-profile. Each instance has
+// exclusive access to it's cache_directory on disk.
 class AppCacheService {
  public:
+  AppCacheService();
   virtual ~AppCacheService();
 
   void Initialize(const FilePath& cache_directory);
 
+  // Context for use during cache updates, should only be accessed
+  // on the IO thread.
+  URLRequestContext* request_context() { return request_context_.get(); }
+  void set_request_context(URLRequestContext* context) {
+    // TODO(michaeln): need to look into test failures that occur
+    // when take this reference? Stubbing out for now.
+    // request_context_ = context;
+  }
+
   // TODO(jennb): API to set service settings, like file paths for storage
 
   // track which processes are using this appcache service
   void RegisterBackend(AppCacheBackendImpl* backend_impl);
   void UnregisterBackend(AppCacheBackendImpl* backend_impl);
 
   void AddCache(AppCache* cache);
   void RemoveCache(AppCache* cache);
   void AddGroup(AppCacheGroup* group);
   void RemoveGroup(AppCacheGroup* group);
 
   AppCacheBackendImpl* GetBackend(int id) {
     BackendMap::iterator it = backends_.find(id);
     return (it != backends_.end()) ? it->second : NULL;
   }
 
   AppCache* GetCache(int64 id) {
     CacheMap::iterator it = caches_.find(id);
     return (it != caches_.end()) ? it->second : NULL;
   }
 
   AppCacheGroup* GetGroup(const GURL& manifest_url) {
     GroupMap::iterator it = groups_.find(manifest_url);
     return (it != groups_.end()) ? it->second : NULL;
   }
 
+  // The service generates unique storage ids for different object types.
+  int64 NewCacheId() { return ++last_cache_id_; }
+  int64 NewGroupId() { return ++last_group_id_; }
+  int64 NewEntryId() { return ++last_entry_id_; }
+  int64 NewResponseId() { return ++last_response_id_; }
+
  private:
   // In-memory representation of stored appcache data. Represents a subset
   // of the appcache database currently in use.
   typedef base::hash_map<int64, AppCache*> CacheMap;
   typedef std::map<GURL, AppCacheGroup*> GroupMap;
   CacheMap caches_;
   GroupMap groups_;
 
+  // The last storage id used for different object types.
+  int64 last_cache_id_;
+  int64 last_group_id_;
+  int64 last_entry_id_;
+  int64 last_response_id_;
+
   // Track current processes.  One 'backend' per child process.
   typedef std::map<int, AppCacheBackendImpl*> BackendMap;
   BackendMap backends_;
 
   FilePath cache_directory_;
+
+  // Context for use during cache updates.
+  scoped_refptr<URLRequestContext> request_context_;
+
   // TODO(jennb): info about appcache storage
   // AppCacheDatabase db_;
   // DiskCache response_storage_;
 
-  // TODO(jennb): service settings: e.g. max size of app cache?
   // TODO(jennb): service state: e.g. reached quota?
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_APPCACHE_SERVICE_H_