Mojo C++ bindings: expose serialization public API for mojo structs.

mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl

Index: mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl
diff --git a/mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl b/mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl
index b4abd686decf4d889ffbf2308a84016ffc88e987..1c4d9f71b890f167c95918582b6b721568c41a6a 100644
--- a/mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl
+++ b/mojo/public/tools/bindings/generators/cpp_templates/wrapper_class_declaration.tmpl
@@ -52,6 +52,23 @@ class {{struct.name}} {
                 T, {{struct.name}}>::value>::type* = nullptr>
   bool Equals(const T& other) const;
 
+{%- set serialization_result_type = "mojo::WTFArray<uint8_t>"
+        if for_blink else "mojo::Array<uint8_t>" %}
+
+  template <typename UserType>
+  static {{serialization_result_type}} Serialize(UserType* input) {
+    return mojo::internal::StructSerializeImpl<
+        {{struct.name}}Ptr, {{serialization_result_type}}>(input);
+  }
+
+  template <typename UserType>
+  static bool Deserialize({{serialization_result_type}} input,
+                          UserType* output) {
+    return mojo::internal::StructDeserializeImpl<
+        {{struct.name}}Ptr, {{serialization_result_type}}>(
+            std::move(input), output);
+  }
+
 {#--- Struct members #}
 {%  for field in struct.fields %}
 {%-   set type = field.kind|cpp_wrapper_type %}