From 6181c03df03f298779db071315103ff5a8bd99ab Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Thu, 22 Oct 2020 23:04:53 -0700
Subject: [PATCH] fix: setSimpleFullScreen shows traffic light in frameless
 window (#26096)

---
 shell/browser/native_window_mac.mm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/shell/browser/native_window_mac.mm b/shell/browser/native_window_mac.mm
index 7e9c4352b2..ff28de50e2 100644
--- a/shell/browser/native_window_mac.mm
+++ b/shell/browser/native_window_mac.mm
@@ -1139,7 +1139,8 @@ void NativeWindowMac::SetSimpleFullScreen(bool simple_fullscreen) {
     }
 
     // Restore window controls visibility state
-    const bool window_button_hidden = !window_button_visibility_.value_or(true);
+    const bool window_button_hidden =
+        !window_button_visibility_.value_or(true) || !has_frame();
     [[window standardWindowButton:NSWindowZoomButton]
         setHidden:window_button_hidden];
     [[window standardWindowButton:NSWindowMiniaturizeButton]