system_api: add fusebox Rename-related protos

BUG=b:255520194
TEST=manual

Change-Id: Idbad3e9836713adfd6d3d58d4244577a65cd1f47
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/4091183
Commit-Queue: Nigel Tao <nigeltao@chromium.org>
Auto-Submit: Nigel Tao <nigeltao@chromium.org>
Reviewed-by: Eric Caruso <ejcaruso@chromium.org>
Tested-by: Nigel Tao <nigeltao@chromium.org>
NOKEYCHECK=True
GitOrigin-RevId: e5370cd2ce5b092f3eaaee584125bff99f700a04
2 files changed
tree: 0564f65ca1cd3da9091678075c5e31fff4ba0dbd
  1. constants/
  2. dbus/
  3. mojo/
  4. src/
  5. switches/
  6. .gitignore
  7. BUILD.gn
  8. build.rs
  9. Cargo.toml
  10. DIR_METADATA
  11. LICENSE
  12. OWNERS
  13. README.md
  14. system_api.pc
README.md

This directory (platform2/system_api) contains constants and definitions like D-Bus service names that are shared between Chromium and Chromium OS.

This directory is only for things like headers and .proto files. No implementation should be added.

When writting a .proto file make sure to use:

option optimize_for = LITE_RUNTIME;

This will force usage of a lite protobuf instead of a full/heavy weight protobuf. The browser only links against the light version, so you will get cryptic link errors about missing parts of Message if you define a protobuf here and then try to use it in Chrome. Currently CrOS links against the full protobuffer library, but that might change in the future.

When declaring a protobuf, avoid use of required unless it is exactly what you mean. "Required is Forever" and very rarely should actually be used. Consult Protocol Buffer Basics: C++ for a detailed of this issue.