[lacros dgapi] stub implementation

Add a stub Digital Goods implementation in Lacros to avoid a renderer
crash until a proper Digital Goods service is implemented for Lacros.

Bug: 1203666
Change-Id: I7355882f3c99d970593aecca7e70c3013483fc8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3528034
Reviewed-by: Dominick Ng <[email protected]>
Reviewed-by: Glen Robertson <[email protected]>
Commit-Queue: Alexander Bolodurin <[email protected]>
Cr-Commit-Position: refs/heads/main@{#981522}
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index e0061b9..b11a8dd 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -5077,6 +5077,8 @@
       "apps/app_service/app_service_proxy_lacros.h",
       "apps/app_service/browser_app_instance_forwarder.cc",
       "apps/app_service/browser_app_instance_forwarder.h",
+      "apps/digital_goods/digital_goods_factory_stub.cc",
+      "apps/digital_goods/digital_goods_factory_stub.h",
       "chrome_browser_main_parts_lacros.cc",
       "chrome_browser_main_parts_lacros.h",
       "chromeos/app_mode/app_session.cc",