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+/* 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIInputStream;
+interface nsIURI;
+
+/**
+ * nsIInputStreamChannel
+ *
+ * This interface provides methods to initialize an input stream channel.
+ * The input stream channel serves as a data pump for an input stream.
+ */
+[scriptable, uuid(ea730238-4bfd-4015-8489-8f264d05b343)]
+interface nsIInputStreamChannel : nsISupports
+{
+ /**
+ * Sets the URI for this channel. This must be called before the
+ * channel is opened, and it may only be called once.
+ */
+ void setURI(in nsIURI aURI);
+
+ /**
+ * Get/set the content stream
+ *
+ * This stream contains the data that will be pushed to the channel's
+ * stream listener. If the stream is non-blocking and supports the
+ * nsIAsyncInputStream interface, then the stream will be read directly.
+ * Otherwise, the stream will be read on a background thread.
+ *
+ * This attribute must be set before the channel is opened, and it may
+ * only be set once.
+ *
+ * @throws NS_ERROR_IN_PROGRESS if the setter is called after the channel
+ * has been opened.
+ */
+ attribute nsIInputStream contentStream;
+
+ /**
+ * Get/set the srcdoc data string. When the input stream channel is
+ * created to load a srcdoc iframe, this is set to hold the value of the
+ * srcdoc attribute.
+ *
+ * This should be the same value used to create contentStream, but this is
+ * not checked.
+ *
+ * Changing the value of this attribute will not otherwise affect the
+ * functionality of the channel or input stream.
+ */
+ attribute AString srcdocData;
+
+ /**
+ * Returns true if srcdocData has been set within the channel.
+ */
+ readonly attribute boolean isSrcdocChannel;
+
+ /**
+ * The base URI to be used for the channel. Used when the base URI cannot
+ * be inferred by other means, for example when this is a srcdoc channel.
+ */
+ attribute nsIURI baseURI;
+};