Merge "fastboot: Add header that declares std::function" am: 1f876a81dd

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2620235

Change-Id: Ie2454f2d45b6cba525dc0b65176e6f154149e2ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/fastboot/fastboot_driver.h b/fastboot/fastboot_driver.h
index 3d6c7b0..6ac26ce 100644
--- a/fastboot/fastboot_driver.h
+++ b/fastboot/fastboot_driver.h
@@ -28,6 +28,7 @@
 #pragma once
 #include <cstdlib>
 #include <deque>
+#include <functional>
 #include <limits>
 #include <string>
 #include <vector>