Don't fail if we can't replace "-1" in the WWW_OpenURL topic value stored in
the registry with "0", it can be already "0" for the recent Firefox versions.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72417 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Extract wxMSW-specific part of src/msw/utilsgui.cpp into a new
src/msw/utilswin.cpp file to allow reuse the rest of the former file in wxGTK.
Closes#14424.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72082 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775