idmap2: fix cpplint warnings

Bug: 189963636
Test: frameworks/base/cmds/idmap2/static-checks.sh
Change-Id: I6da18cdbbd2fc33db711696445230a9f316dc143
diff --git a/cmds/idmap2/idmap2d/Idmap2Service.h b/cmds/idmap2/idmap2d/Idmap2Service.h
index 40843f7..c16c3c5 100644
--- a/cmds/idmap2/idmap2d/Idmap2Service.h
+++ b/cmds/idmap2/idmap2d/Idmap2Service.h
@@ -24,7 +24,9 @@
 #include <idmap2/ResourceContainer.h>
 #include <idmap2/Result.h>
 
+#include <memory>
 #include <string>
+#include <vector>
 
 namespace android::os {