diff --git a/ui/accessibility/platform/inspect/tree_formatter.h b/ui/accessibility/platform/inspect/tree_formatter.h
index 4a70a4d54..532da613a 100644
--- a/ui/accessibility/platform/inspect/tree_formatter.h
+++ b/ui/accessibility/platform/inspect/tree_formatter.h
@@ -5,6 +5,9 @@
 #ifndef UI_ACCESSIBILITY_PLATFORM_INSPECT_TREE_FORMATTER_H_
 #define UI_ACCESSIBILITY_PLATFORM_INSPECT_TREE_FORMATTER_H_
 
+#include <vector>
+#include <memory>
+
 #include "ui/accessibility/platform/inspect/inspect.h"
 
 #include "ui/gfx/native_widget_types.h"