diff --git a/content/public/browser/url_loader_throttles.h b/content/public/browser/url_loader_throttles.h
index 0e67d38f7..aa0290118 100644
--- a/content/public/browser/url_loader_throttles.h
+++ b/content/public/browser/url_loader_throttles.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_PUBLIC_BROWSER_URL_LOADER_THROTTLES_H_
 #define CONTENT_PUBLIC_BROWSER_URL_LOADER_THROTTLES_H_
 
+#include <vector>
+
 #include "base/callback.h"
 #include "content/common/content_export.h"