http://bugs.winehq.org/show_bug.cgi?id=24579
--- Comment #30 from Alexey Loukianov mooroon2@mail.ru 2011-07-13 02:27:54 CDT --- (In reply to comment #29)
FWIW, I think I've seen Chrome on Linux (not wine) have the it-gets-stuck-to-the-cursor-after-moving bug. Since Steam and Chrome are both based on webkit (and maybe steam uses awesomeonium, I forget), maybe part of this is an app bug.
To be honest, I highly doubt that the bug in Chrome you had run into is anyhow related to the webkit. Actually it all comes down to an app wishing to set it's on-screen position by itself bypassing X window manager. In default mode Chrome on linux doesn't use WM decorations (just like Steam) and handles window moves itself (again, just like Steam). So it is perfectly possible that the Chrome browser had been falling just into the same pit Steam+Wine now sits at.