Read-only gsubtree of platform2/system_api/ code

Clone this repo:
  1. 8847c22 system_api: Add DBus service constants for SetHotwordModel by paulhsia · 44 minutes ago master
  2. d602132 system_api: add GetDnsSettings concierge DBus method by Dmitry Torokhov · 44 minutes ago
  3. 0d3de3b cros-disks: Query the storage device path of a device by Austin Tankiang · 6 hours ago
  4. 9691799 system_api: add ImportDiskImage and DiskImageStatus concierge DBus methods by Dmitry Torokhov · 6 hours ago
  5. 5b1adb6 system_api: debugd: remove GetModemStatus constant by Ben Chan · 10 hours ago

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.