smbprovider: Add WriteFile protobuf
This change adds WriteFileOptionsProto as a protobuf that will be used
to pass inputs into WriteFile.
BUG=chromium:757625
TEST=emerges
Change-Id: I2a6c92fc63d1b6a41ad000da653fc459e777726e
Reviewed-on: https://chromium-review.googlesource.com/882389
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Allen Vicencio <allenvic@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Reviewed-by: Bailey Berro <baileyberro@chromium.org>
2 files changed
