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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 "domstubs.idl"
+
+[scriptable, uuid(832e692c-c4a6-11e2-8fd1-dce678957a39)]
+interface nsIReflowObserver : nsISupports
+{
+ /**
+ * Called when an uninterruptible reflow has occurred.
+ *
+ * @param start timestamp when reflow ended, in milliseconds since
+ * navigationStart (accurate to 1/1000 of a ms)
+ * @param end timestamp when reflow ended, in milliseconds since
+ * navigationStart (accurate to 1/1000 of a ms)
+ */
+ void reflow(in DOMHighResTimeStamp start,
+ in DOMHighResTimeStamp end);
+
+ /**
+ * Called when an interruptible reflow has occurred.
+ *
+ * @param start timestamp when reflow ended, in milliseconds since
+ * navigationStart (accurate to 1/1000 of a ms)
+ * @param end timestamp when reflow ended, in milliseconds since
+ * navigationStart (accurate to 1/1000 of a ms)
+ */
+ void reflowInterruptible(in DOMHighResTimeStamp start,
+ in DOMHighResTimeStamp end);
+};