import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

uriloader/prefetch/nsIPrefetchService.idl

@@ -0,0 +1,37 @@
+/* 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 nsIURI;
+interface nsIDOMNode;
+interface nsISimpleEnumerator;
+
+[scriptable, uuid(422a1807-4e7f-463d-b8d7-ca2ceb9b5d53)]
+interface nsIPrefetchService : nsISupports
+{
+    /**
+     * Enqueue a request to prefetch the specified URI.
+     *
+     * @param aURI the URI of the document to prefetch
+     * @param aReferrerURI the URI of the referring page
+     * @param aSource the DOM node (such as a <link> tag) that requested this
+     *        fetch, or null if the prefetch was not requested by a DOM node.
+     * @param aExplicit the link element has an explicit prefetch link type
+     */
+    void prefetchURI(in nsIURI aURI,
+                     in nsIURI aReferrerURI,
+                     in nsIDOMNode aSource,
+                     in boolean aExplicit);
+
+    /**
+     * Find out if there are any prefetches running or queued
+     */
+    boolean hasMoreElements();
+
+    /**
+     * Cancel prefetch
+     */
+    void cancelPrefetchURI(in nsIURI aURI, in nsIDOMNode aSource);
+};