libchrome: add base/functional/* headers am: 57f727b567 am: 316c1ca053 am: 8f8c6a22cf

Original change: https://android-review.googlesource.com/c/platform/external/libchrome/+/2399915

Change-Id: I19e1112dc7f60de347465551ebf8c14936172e0a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>