Issue MoonchildProductions/UXP#1578 - Add global menubar support for GTK

layout/build/moz.build

@@ -73,6 +73,10 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android':
         '/dom/system',
         '/dom/system/android',
     ]
+elif 'gtk' in CONFIG['MOZ_WIDGET_TOOLKIT']:
+    LOCAL_INCLUDES += [
+        '/widget/gtk',
+    ]
 
 if CONFIG['MOZ_WEBSPEECH']:
     LOCAL_INCLUDES += [

layout/build/nsLayoutStatics.cpp

@@ -124,6 +124,10 @@
 #include "mozilla/StaticPresData.h"
 #include "mozilla/dom/WebIDLGlobalNameHash.h"
 
+#ifdef MOZ_WIDGET_GTK
+#include "nsNativeMenuAtoms.h"
+#endif
+
 using namespace mozilla;
 using namespace mozilla::net;
 using namespace mozilla::dom;
@@ -158,6 +162,9 @@ nsLayoutStatics::Initialize()
   nsTextServicesDocument::RegisterAtoms();
   nsHTMLTags::RegisterAtoms();
   nsRDFAtoms::RegisterAtoms();
+#ifdef MOZ_WIDGET_GTK
+  nsNativeMenuAtoms::RegisterAtoms();
+#endif
 
   NS_SealStaticAtomTable();