Remove base::subtle::MemoryBarrier

It clashes with MemoryBarrier macro defined in windows.h.

TBR=fdoray@chromium.org
(for updating callers outside of //base)

Bug: 952820
Change-Id: I68c742ed21cea6eb5b10127dea92100fd29d3b3e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1565986
Commit-Queue: Tomasz Moniuszko <tmoniuszko@opera.com>
Reviewed-by: Fran├žois Doray <fdoray@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657167}
19 files changed