import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

embedding/browser/nsEmbedStream.h

@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=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 nsEmbedStream_h__
+#define nsEmbedStream_h__
+
+#include "nsCOMPtr.h"
+#include "nsIOutputStream.h"
+#include "nsIURI.h"
+#include "nsIWebBrowser.h"
+
+class nsEmbedStream : public nsISupports
+{
+public:
+  nsEmbedStream();
+
+  void InitOwner(nsIWebBrowser* aOwner);
+  nsresult Init(void);
+
+  nsresult OpenStream(nsIURI* aBaseURI, const nsACString& aContentType);
+  nsresult AppendToStream(const uint8_t* aData, uint32_t aLen);
+  nsresult CloseStream(void);
+
+  NS_DECL_ISUPPORTS
+
+protected:
+  virtual ~nsEmbedStream();
+
+private:
+  nsIWebBrowser* mOwner;
+  nsCOMPtr<nsIOutputStream> mOutputStream;
+};
+
+#endif // nsEmbedStream_h__