diff -r 000000000000 -r 6474c204b198 uriloader/base/nsIWebProgressListener2.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uriloader/base/nsIWebProgressListener2.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,69 @@
+/* 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 "nsIWebProgressListener.idl"
+
+/**
+ * An extended version of nsIWebProgressListener.
+ */
+[scriptable, uuid(dde39de0-e4e0-11da-8ad9-0800200c9a66)]
+interface nsIWebProgressListener2 : nsIWebProgressListener {
+  /**
+   * Notification that the progress has changed for one of the requests
+   * associated with aWebProgress.  Progress totals are reset to zero when all
+   * requests in aWebProgress complete (corresponding to onStateChange being
+   * called with aStateFlags including the STATE_STOP and STATE_IS_WINDOW
+   * flags).
+   *
+   * This function is identical to nsIWebProgressListener::onProgressChange,
+   * except that this function supports 64-bit values.
+   *
+   * @param aWebProgress
+   *        The nsIWebProgress instance that fired the notification.
+   * @param aRequest
+   *        The nsIRequest that has new progress.
+   * @param aCurSelfProgress
+   *        The current progress for aRequest.
+   * @param aMaxSelfProgress
+   *        The maximum progress for aRequest.
+   * @param aCurTotalProgress
+   *        The current progress for all requests associated with aWebProgress.
+   * @param aMaxTotalProgress
+   *        The total progress for all requests associated with aWebProgress.
+   *
+   * NOTE: If any progress value is unknown, then its value is replaced with -1.
+   *
+   * @see nsIWebProgressListener2::onProgressChange64
+   */
+  void onProgressChange64(in nsIWebProgress aWebProgress,
+                          in nsIRequest aRequest,
+                          in long long aCurSelfProgress,
+                          in long long aMaxSelfProgress,
+                          in long long aCurTotalProgress,
+                          in long long aMaxTotalProgress);
+
+  /**
+   * Notification that a refresh or redirect has been requested in aWebProgress
+   * For example, via a <meta http-equiv="refresh"> or an HTTP Refresh: header
+   *
+   * @param aWebProgress
+   *        The nsIWebProgress instance that fired the notification.
+   * @param aRefreshURI
+   *        The new URI that aWebProgress has requested redirecting to.
+   * @param aMillis
+   *        The delay (in milliseconds) before refresh.
+   * @param aSameURI
+   *        True if aWebProgress is requesting a refresh of the
+   *        current URI.
+   *        False if aWebProgress is requesting a redirection to
+   *        a different URI.
+   *
+   * @return True if the refresh may proceed.
+   *         False if the refresh should be aborted.
+   */
+  boolean onRefreshAttempted(in nsIWebProgress aWebProgress,
+                             in nsIURI aRefreshURI,
+                             in long aMillis,
+                             in boolean aSameURI);
+};