[mojo] Support native types with mojom wire format

mojo/public/interfaces/bindings/tests/blink_test.typemap

Index: mojo/public/interfaces/bindings/tests/blink_test.typemap
diff --git a/mojo/public/interfaces/bindings/tests/blink_test.typemap b/mojo/public/interfaces/bindings/tests/blink_test.typemap
index 511a5498c1032643e049559b1dd869aa3e735b57..effc0a2f1f7e8a41b39339db24ba718bc8d244e9 100644
--- a/mojo/public/interfaces/bindings/tests/blink_test.typemap
+++ b/mojo/public/interfaces/bindings/tests/blink_test.typemap
@@ -9,6 +9,12 @@
       "headers": [
         "mojo/public/cpp/bindings/tests/pickled_struct_blink.h"
       ]
+    },
+    "mojo.test.Rect": {
+      "typename": "mojo::test::RectBlink",
+      "headers": [
+        "mojo/public/cpp/bindings/tests/rect_blink.h"
+      ]
     }
   }
 }