When GetProcessInformation() obtains SystemProcessInformation, it
resizes its buffer as directed by NtQuerySystemInformation(). Nothing of
value resides in the old buffer if a resize is attempted, so it can be
freed before attempting to allocate a resized one.
This may help crashes like go/crash/f385e94c80000000, which experience
out-of-memory while attempting to allocate a resized buffer. It also may
not help, because the required buffer size may just be too large to fit
in memory. See https://crashpad.chromium.org/bug/143#c19.
Change-Id: I63b9b8c1efda22d2fdbf05ef2b74975b92556bbd
Reviewed-on: https://chromium-review.googlesource.com/473792
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
79425e4d97