Validate map keys in C++ Mojo bindings

mojo/public/cpp/bindings/tests/union_unittest.cc

Index: mojo/public/cpp/bindings/tests/union_unittest.cc
diff --git a/mojo/public/cpp/bindings/tests/union_unittest.cc b/mojo/public/cpp/bindings/tests/union_unittest.cc
index 2c6c461a68bcb22ab020b18365d0e331b8b2dd37..a5f65af52fa8ed066b24b0f7d6c0e762f5319c8a 100644
--- a/mojo/public/cpp/bindings/tests/union_unittest.cc
+++ b/mojo/public/cpp/bindings/tests/union_unittest.cc
@@ -705,7 +705,9 @@ TEST(UnionTest, PodUnionInMapSerialization) {
   mojo::internal::FixedBufferForTesting buf(size);
   mojo::internal::Map_Data<mojo::internal::String_Data*,
                            internal::PodUnion_Data>* data;
-  mojo::internal::ArrayValidateParams validate_params(0, false, nullptr);
+  mojo::internal::ArrayValidateParams validate_params(
+      new mojo::internal::ArrayValidateParams(0, false, nullptr),
+      new mojo::internal::ArrayValidateParams(0, false, nullptr));
   mojo::internal::Serialize<Map<String, PodUnionPtr>>(
       map, &buf, &data, &validate_params, &context);
 
@@ -731,7 +733,9 @@ TEST(UnionTest, PodUnionInMapSerializationWithNull) {
   mojo::internal::FixedBufferForTesting buf(size);
   mojo::internal::Map_Data<mojo::internal::String_Data*,
                            internal::PodUnion_Data>* data;
-  mojo::internal::ArrayValidateParams validate_params(0, true, nullptr);
+  mojo::internal::ArrayValidateParams validate_params(
+      new mojo::internal::ArrayValidateParams(0, false, nullptr),
+      new mojo::internal::ArrayValidateParams(0, true, nullptr));
   mojo::internal::Serialize<Map<String, PodUnionPtr>>(
       map, &buf, &data, &validate_params, &context);