idmap2: fix cpplint warnings

Bug: 189963636
Test: frameworks/base/cmds/idmap2/static-checks.sh
Change-Id: I6da18cdbbd2fc33db711696445230a9f316dc143
diff --git a/cmds/idmap2/libidmap2/RawPrintVisitor.cpp b/cmds/idmap2/libidmap2/RawPrintVisitor.cpp
index a016a36..779538c 100644
--- a/cmds/idmap2/libidmap2/RawPrintVisitor.cpp
+++ b/cmds/idmap2/libidmap2/RawPrintVisitor.cpp
@@ -18,6 +18,8 @@
 
 #include <algorithm>
 #include <cstdarg>
+#include <string>
+#include <utility>
 
 #include "android-base/macros.h"
 #include "android-base/stringprintf.h"