Temporarily CHECK use after free in Value

components/policy/core/common/registry_dict.cc

Index: components/policy/core/common/registry_dict.cc
diff --git a/components/policy/core/common/registry_dict.cc b/components/policy/core/common/registry_dict.cc
index 29c9df73133d7ec59a75f9a95b936961b18a4f2e..bd274a3b8e4757f641aaa6fa4d34f6e1181320ce 100644
--- a/components/policy/core/common/registry_dict.cc
+++ b/components/policy/core/common/registry_dict.cc
@@ -138,6 +138,11 @@ std::unique_ptr<base::Value> ConvertValue(const base::Value& value,
     case base::Value::Type::BINARY:
       // No conversion possible.
       break;
+
+    case base::Value::Type::DELETED:
+      // TODO(crbug.com/697817): This means a use-after-free.
+      CHECK(false);
+      break;
   }
 
   LOG(WARNING) << "Failed to convert " << value.GetType()