libchrome: remove base::Optional as alias of absl::optional

All usages of base::Optional are replaced by std::optional.

BUG=b:192529039
TEST=CQ

Change-Id: I16dce5d678bb98a6aaf289c712ba890c3a5e5d3d
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/external/libchrome/+/3567903
Reviewed-by: Qijiang YĆ«ki Ishii <fqj@google.com>
Commit-Queue: Grace Cham <hscham@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Tested-by: Grace Cham <hscham@chromium.org>
2 files changed
tree: 80d2c03974e1e0ae05d4c360876f58a9b419fa2e
  1. base/
  2. build/
  3. components/
  4. crypto/
  5. dbus/
  6. device/
  7. ipc/
  8. libchrome_tools/
  9. mojo/
  10. soong/
  11. testing/
  12. third_party/
  13. ui/
  14. .gitignore
  15. Android.bp
  16. BASE_VER
  17. BUILD.gn
  18. BUILD.IGNORE
  19. MODULE_LICENSE_BSD
  20. NOTICE
  21. OWNERS
  22. PRESUBMIT.cfg
  23. README.md
  24. testrunner.cc
  25. unblocked_terms.txt
README.md

libchrome

Overview

This directory includes the source from Chrome's libbase for use in Chrome OS.

See libchrome.md for more info.