system_api: add explicit error code for license issues for Plugin VM

It is beneficial to know whether certain operations failed because of
invalid license or other reasons.


Change-Id: I763706e9fefd0a476d7d82808f556911937b7335
Tested-by: Dmitry Torokhov <>
Commit-Ready: Dmitry Torokhov <>
Legacy-Commit-Queue: Commit Bot <>
Reviewed-by: Timothy Loh <>
Cr-Mirrored-Commit: b1c3be8c490ea9a3a84569282f43238e284b6d71
1 file changed
tree: 1352f18571afc96d14ac98abac6a5e27ef8c975a
  1. constants/
  2. dbus/
  3. switches/
  8. system_api.pc

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.