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 1852ff73cea130c9e8bf40f324ac9eaa58742a13..96ae1427e8379d8a675dcea293ca563107575bba 100644
--- a/mojo/public/cpp/bindings/lib/array_internal.cc
+++ b/mojo/public/cpp/bindings/lib/array_internal.cc
@@ -73,5 +73,17 @@ 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