Bulk IWYU and build_cleaner fixes

PiperOrigin-RevId: 559733768
Change-Id: Ia38f4c176e9f0abbfdb3a8f1109f482d8870eb0f

sandboxed_api/proto_helper.cc

diff --git a/sandboxed_api/proto_helper.cc b/sandboxed_api/proto_helper.cc
index 21eb0d5..868033d 100644
--- a/sandboxed_api/proto_helper.cc
+++ b/sandboxed_api/proto_helper.cc
@@ -14,7 +14,13 @@
 
 #include "sandboxed_api/proto_helper.h"
 
+#include <cstddef>
+#include <cstdint>
+#include <string>
+#include <vector>
+
 #include "absl/status/status.h"
+#include "absl/status/statusor.h"
 
 namespace sapi {