Changes imported from Abseil "staging" branch:

  - 53eebc8dc5730f42b1cda71bc55a5097d330b484 This changes the value base_internal::kOnceDone from 32-b... by Abseil Team <absl-team@google.com>
  - e34af839e2062e9ed6639803186811be23e6fb80 This changes the value base_internal::kOnceDone from 32-b... by Abseil Team <absl-team@google.com>
  - dfb395ba062168eeb15237724b628a1b2494052c Remove unnecessary dependency. by Abseil Team <absl-team@google.com>

GitOrigin-RevId: 53eebc8dc5730f42b1cda71bc55a5097d330b484
Change-Id: Ide088c81d660c4be900b2456d57a8dcbdb349cc7