diff -r 000000000000 -r 6474c204b198 dom/quota/nsIOfflineStorage.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/quota/nsIOfflineStorage.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,104 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsIOfflineStorage_h__
+#define nsIOfflineStorage_h__
+
+#include "nsIFileStorage.h"
+
+#include "mozilla/dom/quota/PersistenceType.h"
+
+#define NS_OFFLINESTORAGE_IID \
+  {0xec7e878d, 0xc8c1, 0x402e, \
+  { 0xa2, 0xc4, 0xf6, 0x82, 0x29, 0x4e, 0x3c, 0xb1 } }
+
+class nsPIDOMWindow;
+
+namespace mozilla {
+namespace dom {
+namespace quota {
+class Client;
+}
+}
+}
+
+class nsIOfflineStorage : public nsIFileStorage
+{
+public:
+  typedef mozilla::dom::quota::Client Client;
+  typedef mozilla::dom::quota::PersistenceType PersistenceType;
+
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_OFFLINESTORAGE_IID)
+
+  NS_IMETHOD_(Client*)
+  GetClient() = 0;
+
+  NS_IMETHOD_(bool)
+  IsOwned(nsPIDOMWindow* aOwner) = 0;
+
+  NS_IMETHOD_(PersistenceType)
+  Type()
+  {
+    return mPersistenceType;
+  }
+
+  NS_IMETHOD_(const nsACString&)
+  Group()
+  {
+    return mGroup;
+  }
+
+  NS_IMETHOD_(const nsACString&)
+  Origin() = 0;
+
+  // Implementation of this method should close the storage (without aborting
+  // running operations nor discarding pending operations).
+  NS_IMETHOD_(nsresult)
+  Close() = 0;
+
+  // Whether or not the storage has had Close called on it.
+  NS_IMETHOD_(bool)
+  IsClosed() = 0;
+
+  // Implementation of this method should close the storage, all running
+  // operations should be aborted and pending operations should be discarded.
+  NS_IMETHOD_(void)
+  Invalidate() = 0;
+
+protected:
+  nsIOfflineStorage()
+  : mPersistenceType(mozilla::dom::quota::PERSISTENCE_TYPE_INVALID)
+  { }
+
+  virtual ~nsIOfflineStorage()
+  { }
+
+  PersistenceType mPersistenceType;
+  nsCString mGroup;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsIOfflineStorage, NS_OFFLINESTORAGE_IID)
+
+#define NS_DECL_NSIOFFLINESTORAGE                                              \
+  NS_IMETHOD_(Client*)                                                         \
+  GetClient() MOZ_OVERRIDE;                                                    \
+                                                                               \
+  NS_IMETHOD_(bool)                                                            \
+  IsOwned(nsPIDOMWindow* aOwner) MOZ_OVERRIDE;                                 \
+                                                                               \
+  NS_IMETHOD_(const nsACString&)                                               \
+  Origin() MOZ_OVERRIDE;                                                       \
+                                                                               \
+  NS_IMETHOD_(nsresult)                                                        \
+  Close() MOZ_OVERRIDE;                                                        \
+                                                                               \
+  NS_IMETHOD_(bool)                                                            \
+  IsClosed() MOZ_OVERRIDE;                                                     \
+                                                                               \
+  NS_IMETHOD_(void)                                                            \
+  Invalidate() MOZ_OVERRIDE;
+
+#endif // nsIOfflineStorage_h__