Mojo cpp bindings: validation logic for incoming messages

mojo/public/cpp/bindings/lib/array_internal.cc

Index: mojo/public/cpp/bindings/lib/array_internal.cc
diff --git a/mojo/public/cpp/bindings/lib/array_internal.cc b/mojo/public/cpp/bindings/lib/array_internal.cc
index 9156ee4ebe4b0dc405e884198d1f4a45d5085ef6..4614bd15c1844135526d4b2e91050164ebef2601 100644
--- a/mojo/public/cpp/bindings/lib/array_internal.cc
+++ b/mojo/public/cpp/bindings/lib/array_internal.cc
@@ -55,5 +55,17 @@ bool ArraySerializationHelper<Handle, true>::DecodePointersAndHandles(
   return true;
 }
 
+// static
+bool ArraySerializationHelper<Handle, true>::ValidateElements(
+    const ArrayHeader* header,
+    const ElementType* elements,
+    BoundsChecker* bounds_checker) {
+  for (uint32_t i = 0; i < header->num_elements; ++i) {
+    if (!bounds_checker->ClaimHandle(elements[i]))
+      return false;
+  }
+  return true;
+}
+
 }  // namespace internal
 }  // namespace mojo