Specify empty paramters as void in ABinderProcess_.

Bug: 262416746
Test: treehugger
Change-Id: Ifa864df9832aedf095158d82a5865a1de0076ed4
diff --git a/libs/binder/ndk/process.cpp b/libs/binder/ndk/process.cpp
index bc6610e..0fea57b 100644
--- a/libs/binder/ndk/process.cpp
+++ b/libs/binder/ndk/process.cpp
@@ -24,17 +24,17 @@
 using ::android::IPCThreadState;
 using ::android::ProcessState;
 
-void ABinderProcess_startThreadPool() {
+void ABinderProcess_startThreadPool(void) {
     ProcessState::self()->startThreadPool();
     ProcessState::self()->giveThreadPoolName();
 }
 bool ABinderProcess_setThreadPoolMaxThreadCount(uint32_t numThreads) {
     return ProcessState::self()->setThreadPoolMaxThreadCount(numThreads) == 0;
 }
-bool ABinderProcess_isThreadPoolStarted() {
+bool ABinderProcess_isThreadPoolStarted(void) {
     return ProcessState::self()->isThreadPoolStarted();
 }
-void ABinderProcess_joinThreadPool() {
+void ABinderProcess_joinThreadPool(void) {
     IPCThreadState::self()->joinThreadPool();
 }
 
@@ -42,6 +42,6 @@
     return IPCThreadState::self()->setupPolling(fd);
 }
 
-binder_status_t ABinderProcess_handlePolledCommands() {
+binder_status_t ABinderProcess_handlePolledCommands(void) {
     return IPCThreadState::self()->handlePolledCommands();
 }