[webkit-reviews] review requested: [Bug 55979] Unify Windows version checks : [Attachment 85115] Part 1, v1

[bugzilla-daemon at webkit.org]

Peter Kasting <pkasting at google.com> has asked  for review:
Bug 55979: Unify Windows version checks
https://bugs.webkit.org/show_bug.cgi?id=55979

Attachment 85115: Part 1, v1
https://bugs.webkit.org/attachment.cgi?id=85115&action=review

------- Additional Comments from Peter Kasting <pkasting at google.com>
I split this into two parts for easier review, because changing everyone to use
SystemInfo.cpp and changing SystemInfo.cpp to return Windows versions are
distinct and can be done independently, and since each touches a number of
places it's easier to miss things if they're lumped together.