From f62fdfa67fc8391b69d9cde48d9b2fd5ba194911 Mon Sep 17 00:00:00 2001
From: Karl Tomlinson <karlt+@karlt.net>
Date: Wed, 20 Nov 2019 04:32:43 +0000
Subject: [PATCH] Bug 1469716 add log messages for SetTransparencyMode
 r=stransky

Differential Revision: https://phabricator.services.mozilla.com/D53389

--HG--
extra : moz-landing-system : lando
---
 widget/gtk/nsWindow.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
index cbc2da62ee8a..516041abd536 100644
--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -4558,7 +4558,10 @@ void nsWindow::SetTransparencyMode(nsTransparencyMode aMode) {
 
   if (mIsTransparent == isTransparent) {
     return;
-  } else if (mWindowType != eWindowType_popup) {
+  }
+  LOG(("nsWindow::SetTransparencyMode [%p] mode %d\n", this, (int)aMode));
+
+  if (mWindowType != eWindowType_popup) {
     NS_WARNING("Cannot set transparency mode on non-popup windows.");
     return;
   }