Bug 1547931 - Enable the MOZ_BUNDLED_FONTS variable for Thunderbird too. r=jfkthame CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D29328

--HG--
extra : amend_source : 1a581c54149aea50b0b70b0087c552044eadecac

toolkit/moz.configure

@@ -1302,7 +1302,7 @@ def bundled_fonts_default(target):
 
 @depends(build_project)
 def allow_bundled_fonts(project):
-    return project == 'browser'
+    return project == 'browser' or project == 'comm/mail'
 
 option('--enable-bundled-fonts', default=bundled_fonts_default,
        when=allow_bundled_fonts,