Add shutdown-checkpoints to bugreport

Bug: 260366497
Change-Id: I2dd82d799edd907f477673465fdcf6d3dc222cdd
diff --git a/cmds/dumpstate/dumpstate.h b/cmds/dumpstate/dumpstate.h
index 66f84cb..7ffe80e 100644
--- a/cmds/dumpstate/dumpstate.h
+++ b/cmds/dumpstate/dumpstate.h
@@ -499,6 +499,9 @@
     // List of open ANR dump files.
     std::vector<DumpData> anr_data_;
 
+    // List of open shutdown checkpoint files.
+    std::vector<DumpData> shutdown_checkpoints_;
+
     // A thread pool to execute dump tasks simultaneously if the parallel run is enabled.
     std::unique_ptr<android::os::dumpstate::DumpPool> dump_pool_;