http://bugs.winehq.org/show_bug.cgi?id=22514
--- Comment #26 from Timur Iskhodzhanov timurrrr@google.com 2010-04-29 10:13:56 --- They don't pass NULL to strlen in Chromium.
They pass NULL only to lstrlen in windows-specific code and expect 0 in this case. They don't try to pass invalid non-NULL pointers. I doubt they would accept additional "if()" branches to make Wine+Valgrind happy. After all, they use the documented features of lstrlen and they do it correctly.