update_engine: support DLC update
All DLC update related code is hide behind USE_dlc flag so platform
update never touches this new code path unless enabled later.
In CheckForUpdate, update_engine calls dlcservice to get a list of DLC
module and set 'dlc_ids_' accordingly.
BUG=chromium:900653
TEST=unittest
Change-Id: I654e37effa7c1b70b25147a027f2b16abe6bf9e1
Reviewed-on: https://chromium-review.googlesource.com/1321009
Commit-Ready: Xiaochu Liu <xiaochu@chromium.org>
Tested-by: Xiaochu Liu <xiaochu@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/system_state.h b/system_state.h
index 1b0ad08..f46cbcf 100644
--- a/system_state.h
+++ b/system_state.h
@@ -37,6 +37,7 @@
class BootControlInterface;
class ClockInterface;
class ConnectionManagerInterface;
+class DlcServiceInterface;
class HardwareInterface;
class MetricsReporterInterface;
class OmahaRequestParams;
@@ -109,6 +110,9 @@
// restarted. Important for tracking whether you are running instance of the
// update engine on first boot or due to a crash/restart.
virtual bool system_rebooted() = 0;
+
+ // Returns a pointer to the DlcServiceInterface singleton.
+ virtual DlcServiceInterface* dlcservice() = 0;
};
} // namespace chromeos_update_engine