buffet: Add device state manager
Added StateManager class to buffet and all the internals to
load vendor-provided state definition fragments, apply state
property defaults, expose the state property values over D-Bus
to be updated by daemons (using Buffet.UpdateState method) and
sent the current device state to GCD server as part of device
draft provided during device registration.
BUG=chromium:415364
TEST=FEATURES=test emerge-link buffet
Change-Id: I78e470c98d906064dfbe925614613ee6a91ff3cf
Reviewed-on: https://chromium-review.googlesource.com/218743
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/buffet/utils.cc b/buffet/utils.cc
index 71e9a56..1a39984 100644
--- a/buffet/utils.cc
+++ b/buffet/utils.cc
@@ -15,6 +15,8 @@
const char kErrorDomainBuffet[] = "buffet";
const char kFileReadError[] = "file_read_error";
+const char kInvalidCategoryError[] = "invalid_category";
+const char kInvalidPackageError[] = "invalid_package";
std::unique_ptr<const base::DictionaryValue> LoadJsonDict(
const base::FilePath& json_file_path, chromeos::ErrorPtr* error) {
