From 3b2c342f3879705b0cc9919198b984f92aec5e62 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Fri, 2 Nov 2018 10:47:05 +0100
Subject: Make sure we remove our RefreshDriver observers in
 CompleteAsyncScroll.

Follow-up to fdbac095968bc952fec6a03765a7156940ae4733
---
 layout/generic/nsGfxScrollFrame.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'layout/generic/nsGfxScrollFrame.h')

diff --git a/layout/generic/nsGfxScrollFrame.h b/layout/generic/nsGfxScrollFrame.h
index f1ef44ae8..81bbb358f 100644
--- a/layout/generic/nsGfxScrollFrame.h
+++ b/layout/generic/nsGfxScrollFrame.h
@@ -638,6 +638,9 @@ protected:
   bool HasBgAttachmentLocal() const;
   uint8_t GetScrolledFrameDir() const;
 
+  // Removes any RefreshDriver observers we might have registered.
+  void RemoveObservers();
+
   static void EnsureFrameVisPrefsCached();
   static bool sFrameVisPrefsCached;
   // The number of scrollports wide/high to expand when tracking frame visibility.
-- 
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