For what it's worth, here are the valgrind warnings from a run of my current subset of the chromium test suite under valgrind+wine:
http://kegel.com/wine/chromium/valgrind-logs/errors.html
Mostly they're leaks. That's good news.
For the few nonleak warnings, I already filed http://bugs.winehq.org/show_bug.cgi?id=20567 for the des one in http://kegel.com/wine/chromium/valgrind-logs/base_unittests/RSAPrivateKeyUni... http://kegel.com/wine/chromium/valgrind-logs/base_unittests/SignatureCreator... and http://kegel.com/wine/chromium/valgrind-logs/base_unittests/SignatureVerifie...
and http://bugs.winehq.org/show_bug.cgi?id=20553 for the first one in http://kegel.com/wine/chromium/valgrind-logs/unit_tests/TableViewTest.log
and am puzzling over the crash later in TableViewTest (though maybe once I clear up the first error, the crash will go away).
The leaks aren't quite as important. I filed a few so far:
http://bugs.winehq.org/show_bug.cgi?id=20544 shell32 imagelist memory leak on unload? http://bugs.winehq.org/show_bug.cgi?id=20545 memory leak in MMDRV_Init on exit? http://bugs.winehq.org/show_bug.cgi?id=20548 Memory leak in pending overlapped I/O? http://bugs.winehq.org/show_bug.cgi?id=20551 user32 clipboard memory leaks http://bugs.winehq.org/show_bug.cgi?id=20552 Memory leak in alloc_thread_tls?
and http://bugs.winehq.org/show_bug.cgi?id=20549 secur32 memory leak on exit? which is already closed (it's an upstream issue and/or notabug).
Of those, I'm only worried about 20548 and 20551. - Dan