From ece5e7672552eab52a8344029b8ae35c4d06c0e3 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Fri, 10 Apr 2020 21:51:32 +0200
Subject: [PATCH] [layout] Always move descendants of layout frames if moved.

If we move the frame then we always need to move any descendant views,
not just in case the frame itself has a view.
---
 layout/generic/nsContainerFrame.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/layout/generic/nsContainerFrame.cpp b/layout/generic/nsContainerFrame.cpp
index ecd7042510..e2537968cc 100644
--- a/layout/generic/nsContainerFrame.cpp
+++ b/layout/generic/nsContainerFrame.cpp
@@ -1031,6 +1031,7 @@ nsContainerFrame::ReflowChild(nsIFrame*                aKidFrame,
 
   if (0 == (aFlags & NS_FRAME_NO_MOVE_VIEW)) {
     PositionFrameView(aKidFrame);
+    PositionChildViews(aKidFrame);
   }
 
   // Reflow the child frame
@@ -1074,6 +1075,7 @@ nsContainerFrame::ReflowChild(nsIFrame*                aKidFrame,
 
   if (0 == (aFlags & NS_FRAME_NO_MOVE_VIEW)) {
     PositionFrameView(aKidFrame);
+    PositionChildViews(aKidFrame);
   }
 
   // Reflow the child frame