
Many first-party headers reference absl::optional but does not include the header. Fix this mechanically using the file list generated as follows: git ls-files | grep '\.h$' | grep -v third_party | \ xargs grep -l absl::optional | \ xargs grep -L '//.*absl::optional' | \ xargs grep -L override | \ xargs grep -L '^#include "third_party/abseil-cpp/absl/types/optional\.h"' Change-Id: I7693f707a416d3088f7cde22cd07b1458c4c5405 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2911952 Reviewed-by: Peter Kasting <pkasting@chromium.org> Commit-Queue: Peter Kasting <pkasting@chromium.org> Owners-Override: Peter Kasting <pkasting@chromium.org> Cr-Commit-Position: refs/heads/master@{#885381}