Mojo C++ bindings: associated interface pointers/requests validation

mojo/public/cpp/bindings/lib/bindings_internal.h

Index: mojo/public/cpp/bindings/lib/bindings_internal.h
diff --git a/mojo/public/cpp/bindings/lib/bindings_internal.h b/mojo/public/cpp/bindings/lib/bindings_internal.h
index e00c2ab47d62fb92dbcf33ffc9870ed5f270e77b..4c5917a1c61710b5640ad6b32e7024d825ed10fb 100644
--- a/mojo/public/cpp/bindings/lib/bindings_internal.h
+++ b/mojo/public/cpp/bindings/lib/bindings_internal.h
@@ -44,10 +44,7 @@ union ArrayPointer {
 };
 static_assert(sizeof(ArrayPointer<char>) == 8, "Bad_sizeof(ArrayPointer)");
 
-union StringPointer {
-  uint64_t offset;
-  Array_Data<char>* ptr;
-};
+using StringPointer = ArrayPointer<char>;
 static_assert(sizeof(StringPointer) == 8, "Bad_sizeof(StringPointer)");