buffet: Add base.updateBaseConfiguration implementation

Required base command handled by buffet.

BUG=brillo:810
TEST=`FEATURES=test emerge-gizmo buffet`

Change-Id: I97ecd9f5d792cc636e76bbff92899a7ddfa4a605
Reviewed-on: https://chromium-review.googlesource.com/273618
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
diff --git a/buffet/base_api_handler.h b/buffet/base_api_handler.h
index 8743bcf..9c9bcb0 100644
--- a/buffet/base_api_handler.h
+++ b/buffet/base_api_handler.h
@@ -15,22 +15,27 @@
 class CommandInstance;
 class CommandManager;
 class DeviceRegistrationInfo;
+class StateManager;
 
 // Handles commands from 'base' package.
 // Objects of the class subscribe for notification from CommandManager and
 // execute incoming commands.
 // Handled commands:
 //  base.updateDeviceInfo
+//  base.updateBaseConfiguration
 class BaseApiHandler final {
  public:
   BaseApiHandler(const base::WeakPtr<DeviceRegistrationInfo>& device_info,
+                 const std::shared_ptr<StateManager>& state_manager,
                  const std::shared_ptr<CommandManager>& command_manager);
 
  private:
   void OnCommandAdded(CommandInstance* command);
+  void UpdateBaseConfiguration(CommandInstance* command);
   void UpdateDeviceInfo(CommandInstance* command);
 
   base::WeakPtr<DeviceRegistrationInfo> device_info_;
+  std::shared_ptr<StateManager> state_manager_;
 
   base::WeakPtrFactory<BaseApiHandler> weak_ptr_factory_{this};
   DISALLOW_COPY_AND_ASSIGN(BaseApiHandler);