Upstream change from chromium
Upstream change from chromium

This was part of a change to delete base::ThreadLocalStorage::StaticSlot.

Bug: crashpad:271
Change-Id: I0df76318aef05cbaecab660253cb388e3929f693
Reviewed-on: https://chromium-review.googlesource.com/c/1405788
Reviewed-by: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>
Commit-Queue: Vlad Tsyrklevich <3ea22bafc354516b4394ca6e546f643c45fca91c@chromium.org>

chromium/crashpad,chromium/crashpad,chromium/crashpad