Mojo bindings: Fix typemap includes.

mojo/public/cpp/bindings/tests/BUILD.gn

Index: mojo/public/cpp/bindings/tests/BUILD.gn
diff --git a/mojo/public/cpp/bindings/tests/BUILD.gn b/mojo/public/cpp/bindings/tests/BUILD.gn
index 00693e0a539496f8d494652356ca77fd310aa98d..29806cfbdb45a57670a5cd2e038c1169f5c96049 100644
--- a/mojo/public/cpp/bindings/tests/BUILD.gn
+++ b/mojo/public/cpp/bindings/tests/BUILD.gn
@@ -33,10 +33,10 @@ source_set("tests") {
     "pickled_struct_blink.h",
     "pickled_struct_chromium.cc",
     "pickled_struct_chromium.h",
-
-    # TODO: crbug.com/596202
-    #"rect_blink.h",
-    #"rect_chromium.h",
+    "rect_blink.h",
+    "rect_blink_traits.h",
+    "rect_chromium.h",
+    "rect_chromium_traits.h",
     "request_response_unittest.cc",
     "router_test_util.cc",
     "router_test_util.h",
@@ -45,11 +45,12 @@ source_set("tests") {
     "serialization_warning_unittest.cc",
     "stl_converters_unittest.cc",
     "string_unittest.cc",
-
-    #"struct_traits_unittest.cc",
+    "struct_traits_unittest.cc",
     "struct_unittest.cc",
     "struct_with_traits_impl.cc",
     "struct_with_traits_impl.h",
+    "struct_with_traits_impl_traits.cc",
+    "struct_with_traits_impl_traits.h",
     "sync_method_unittest.cc",
     "type_conversion_unittest.cc",
     "union_unittest.cc",