webkit/fileapi/file_system_quota_util.h

   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 WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_
   6 #define WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "googleurl/src/gurl.h"
  13 #include "webkit/fileapi/file_system_types.h"
  14 #include "webkit/storage/webkit_storage_export.h"
  15
  16 namespace base {
  17 class SequencedTaskRunner;
  18 }
  19
  20 namespace quota {
  21 class QuotaManagerProxy;
  22 }
  23
  24 namespace fileapi {
  25
  26 class FileSystemContext;
  27
  28 // An abstract interface that provides common quota-related utility functions
  29 // for file_system_quota_client.
  30 // All the methods of this class are synchronous and need to be called on
  31 // the thread that the method name implies.
  32 class WEBKIT_STORAGE_EXPORT FileSystemQuotaUtil {
  33  public:
  34   virtual ~FileSystemQuotaUtil() {}
  35
  36   virtual void GetOriginsForTypeOnFileThread(fileapi::FileSystemType type,
  37                                              std::set<GURL>* origins) = 0;
  38
  39   virtual void GetOriginsForHostOnFileThread(fileapi::FileSystemType type,
  40                                              const std::string& host,
  41                                              std::set<GURL>* origins) = 0;
  42
  43   // Returns the amount of data used for the origin for usage tracking.
  44   virtual int64 GetOriginUsageOnFileThread(
  45       fileapi::FileSystemContext* file_system_context,
  46       const GURL& origin_url,
  47       fileapi::FileSystemType type) = 0;
  48
  49   virtual void InvalidateUsageCache(const GURL& origin_url,
  50                                     fileapi::FileSystemType type) = 0;
  51 };
  52
  53 }  // namespace fileapi
  54
  55 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_UTIL_H_