Merge "Add explicit <mutex> include" into main am: 716c482c88 am: 74b2cd03b5

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3459703

Change-Id: I1a14da5007dc4463e2a7369c3cc34afcc43185ca
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/libs/binder/include/binder/RpcThreads.h b/libs/binder/include/binder/RpcThreads.h
index 99fa6b8..51b9716b 100644
--- a/libs/binder/include/binder/RpcThreads.h
+++ b/libs/binder/include/binder/RpcThreads.h
@@ -20,6 +20,7 @@
 #include <condition_variable>
 #include <functional>
 #include <memory>
+#include <mutex>
 #include <thread>
 
 #include <binder/Common.h>