add set thread count

Change-Id: I70f02908d8362a465eb8a2a24356f6989847f7ba
diff --git a/include/binder/ProcessState.h b/include/binder/ProcessState.h
index 9725822..8caf1af 100644
--- a/include/binder/ProcessState.h
+++ b/include/binder/ProcessState.h
@@ -70,6 +70,8 @@
 
             void                spawnPooledThread(bool isMain);
             
+            status_t            setThreadPoolMaxThreadCount(size_t maxThreads);
+
 private:
     friend class IPCThreadState;