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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
      6 #define CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
      7 
      8 #include "base/memory/ref_counted.h"
      9 
     10 namespace quota {
     11 class QuotaManager;
     12 }
     13 
     14 namespace fileapi {
     15 class FileSystemContext;
     16 }  // namespace fileapi
     17 
     18 namespace net {
     19 class URLRequestContextGetter;
     20 }
     21 
     22 namespace webkit_database {
     23 class DatabaseTracker;
     24 }  // namespace webkit_database
     25 
     26 namespace content {
     27 class ChromeAppCacheService;
     28 class IndexedDBContextImpl;
     29 
     30 // Contains the data from StoragePartition for use by Worker APIs.
     31 //
     32 // StoragePartition meant for the UI so we can't use it directly in many
     33 // Worker APIs that run on the IO thread. While we could make it RefCounted,
     34 // the Worker system is the only place that really needs access on the IO
     35 // thread. Instead of changing the lifetime semantics of StoragePartition,
     36 // we just create a parallel struct here to simplify the APIs of various
     37 // methods in WorkerServiceImpl.
     38 //
     39 // This class is effectively a struct, but we make it a class because we want to
     40 // define copy constructors, assignment operators, and an Equals() function for
     41 // it which makes it look awkward as a struct.
     42 class WorkerStoragePartition {
     43  public:
     44   WorkerStoragePartition(
     45       net::URLRequestContextGetter* url_request_context,
     46       net::URLRequestContextGetter* media_url_request_context,
     47       ChromeAppCacheService* appcache_service,
     48       quota::QuotaManager* quota_manager,
     49       fileapi::FileSystemContext* filesystem_context,
     50       webkit_database::DatabaseTracker* database_tracker,
     51       IndexedDBContextImpl* indexed_db_context);
     52   ~WorkerStoragePartition();
     53 
     54   // Declaring so these don't get inlined which has the unfortunate effect of
     55   // requiring all including classes to have the full definition of every member
     56   // type.
     57   WorkerStoragePartition(const WorkerStoragePartition& other);
     58   const WorkerStoragePartition& operator=(const WorkerStoragePartition& rhs);
     59 
     60   bool Equals(const WorkerStoragePartition& other) const;
     61 
     62   net::URLRequestContextGetter* url_request_context() const {
     63     return url_request_context_.get();
     64   }
     65 
     66   net::URLRequestContextGetter* media_url_request_context() const {
     67     return media_url_request_context_.get();
     68   }
     69 
     70   ChromeAppCacheService* appcache_service() const {
     71     return appcache_service_.get();
     72   }
     73 
     74   quota::QuotaManager* quota_manager() const {
     75     return quota_manager_.get();
     76   }
     77 
     78   fileapi::FileSystemContext* filesystem_context() const {
     79     return filesystem_context_.get();
     80   }
     81 
     82   webkit_database::DatabaseTracker* database_tracker() const {
     83     return database_tracker_.get();
     84   }
     85 
     86   IndexedDBContextImpl* indexed_db_context() const {
     87     return indexed_db_context_.get();
     88   }
     89 
     90  private:
     91   void Copy(const WorkerStoragePartition& other);
     92 
     93   scoped_refptr<net::URLRequestContextGetter> url_request_context_;
     94   scoped_refptr<net::URLRequestContextGetter> media_url_request_context_;
     95   scoped_refptr<ChromeAppCacheService> appcache_service_;
     96   scoped_refptr<quota::QuotaManager> quota_manager_;
     97   scoped_refptr<fileapi::FileSystemContext> filesystem_context_;
     98   scoped_refptr<webkit_database::DatabaseTracker> database_tracker_;
     99   scoped_refptr<IndexedDBContextImpl> indexed_db_context_;
    100 };
    101 
    102 }  // namespace content
    103 
    104 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
    105