diff -r 000000000000 -r 6474c204b198 dom/file/ArchiveZipFile.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/file/ArchiveZipFile.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,80 @@
+/* -*- 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 mozilla_dom_file_domarchivefile_h__
+#define mozilla_dom_file_domarchivefile_h__
+
+#include "mozilla/Attributes.h"
+#include "nsDOMFile.h"
+
+#include "ArchiveReader.h"
+
+#include "FileCommon.h"
+#include "zipstruct.h"
+
+BEGIN_FILE_NAMESPACE
+
+/**
+ * ZipFile to DOMFileCC
+ */
+class ArchiveZipFile : public nsDOMFileCC
+{
+public:
+  ArchiveZipFile(const nsAString& aName,
+                 const nsAString& aContentType,
+                 uint64_t aLength,
+                 ZipCentral& aCentral,
+                 ArchiveReader* aReader)
+  : nsDOMFileCC(aName, aContentType, aLength),
+    mCentral(aCentral),
+    mArchiveReader(aReader),
+    mFilename(aName)
+  {
+    NS_ASSERTION(mArchiveReader, "must have a reader");
+    MOZ_COUNT_CTOR(ArchiveZipFile);
+  }
+
+  ArchiveZipFile(const nsAString& aName,
+                 const nsAString& aContentType,
+                 uint64_t aStart,
+                 uint64_t aLength,
+                 ZipCentral& aCentral,
+                 ArchiveReader* aReader)
+  : nsDOMFileCC(aContentType, aStart, aLength),
+    mCentral(aCentral),
+    mArchiveReader(aReader),
+    mFilename(aName)
+  {
+    NS_ASSERTION(mArchiveReader, "must have a reader");
+    MOZ_COUNT_CTOR(ArchiveZipFile);
+  }
+
+  virtual ~ArchiveZipFile()
+  {
+    MOZ_COUNT_DTOR(ArchiveZipFile);
+  }
+
+  // Overrides:
+  NS_IMETHOD GetInternalStream(nsIInputStream**) MOZ_OVERRIDE;
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ArchiveZipFile, nsDOMFileCC)
+
+protected:
+  virtual already_AddRefed<nsIDOMBlob> CreateSlice(uint64_t aStart,
+                                                   uint64_t aLength,
+                                                   const nsAString& aContentType) MOZ_OVERRIDE;
+
+private: // Data
+  ZipCentral mCentral;
+  nsRefPtr<ArchiveReader> mArchiveReader;
+
+  nsString mFilename;
+};
+
+END_FILE_NAMESPACE
+
+#endif // mozilla_dom_file_domarchivefile_h__