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-rw-r--r--third_party/base/optional.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/third_party/base/optional.h b/third_party/base/optional.h
index f92101c19b..81d2ebc5cf 100644
--- a/third_party/base/optional.h
+++ b/third_party/base/optional.h
@@ -6,6 +6,7 @@
#define PDFIUM_THIRD_PARTY_BASE_OPTIONAL_H_
#include <type_traits>
+#include <utility>
#include "third_party/base/logging.h"