GitLab

Update the underlying BaseSetOperators<T>::Map type to use
std::unique_ptrs instead of linked_ptrs.

Bug: 907661
Change-Id: I2161ca2acc513ee5d78cc32b14f27199f5a7d1b7
Reviewed-on: https://chromium-review.googlesource.com/c/1351422
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612317}