support large toolbar size

Change-Id: If24baee9a682006ff92e543eeb28490573b6cdec
Reviewed-on: https://gerrit.libreoffice.org/68805
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/source/window/builder.cxx

@@ -664,6 +664,11 @@ VclBuilder::VclBuilder(vcl::Window *pParent, const OUString& sUIDir, const OUStr
                 case 1:
                     pTarget->SetSmallSymbol();
                     break;
+                case 3:
+                    // large toolbar, make bigger than normal (4)
+                    pTarget->set_width_request(pTarget->GetOptimalSize().Width() * 1.5);
+                    pTarget->set_height_request(pTarget->GetOptimalSize().Height() * 1.5);
+                    break;
                 case 4:
                     break;
                 default: