New Mojom Parser: Serialization.

mojom/BUILD.gn

Index: mojom/BUILD.gn
diff --git a/mojom/BUILD.gn b/mojom/BUILD.gn
index 9ef24cb5cd084147657d3840f7e5173d0b659c32..e6d09f819e9b506209b525d402b409bae7ab0f62 100644
--- a/mojom/BUILD.gn
+++ b/mojom/BUILD.gn
@@ -6,9 +6,18 @@ import("//testing/test.gni")
 
 group("mojom") {
   testonly = true
+  deps = [
+    ":tests",
+  ]
   if (is_linux && defined(go_build_tool) && go_build_tool != "") {
-    deps = [
-      "//mojom/mojom_parser",
-    ]
+    deps += [ "//mojom/mojom_parser" ]
+  }
+}
+
+group("tests") {
+  testonly = true
+  deps = []
+  if (is_linux && defined(go_build_tool) && go_build_tool != "") {
+    deps += [ "//mojom/mojom_parser:serialization_test" ]
   }
 }