Files required by a service now listed in manifest.

services/catalog/public/cpp/BUILD.gn

Index: services/catalog/public/cpp/BUILD.gn
diff --git a/services/catalog/public/cpp/BUILD.gn b/services/catalog/public/cpp/BUILD.gn
index 565970d31ec04d610e1dd0a4e8df9b7452e0ff55..0fbdf132fa084cf2004b1b939e1aab40877b324a 100644
--- a/services/catalog/public/cpp/BUILD.gn
+++ b/services/catalog/public/cpp/BUILD.gn
@@ -4,6 +4,8 @@
 
 source_set("cpp") {
   sources = [
+    "manifest_parsing_util.cc",
+    "manifest_parsing_util.h",
     "resource_loader.cc",
     "resource_loader.h",
   ]
@@ -13,6 +15,7 @@ source_set("cpp") {
     "//components/filesystem/public/interfaces",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
+    "//services/catalog:constants",
     "//services/service_manager/public/cpp",
   ]
 }