Check for _WIN32 in util/atomicops.h. (What defines __windows__?)

Change-Id: Iec5c142b6294e3f3c4e91b1644c8f639928f7bb6
Reviewed-on: https://code-review.googlesource.com/3573
Reviewed-by: Paul Wankadia <junyer@google.com>
1 file changed