Store TestInputListener in unique_ptr instead of sp

Since we are removing RefBase from InputListener, we should no longer be
storing it inside sp<>. Store as unique_ptr instead.

Bug: 198472780
Test: m CVE-2021-0684
Change-Id: Icf1c7fd7a87e3884f20cbaa3f1518c6fca3f0e69
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 2bb689b..7f01127 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,6 +1,7 @@
 [Builtin Hooks]
 clang_format = true
 xmllint = true
+bpfmt = true
 
 [Builtin Hooks Options]
 clang_format = --commit ${PREUPLOAD_COMMIT} --style file --extensions c,h,cc,cpp