[rpc_binder][test] Merge unixBootstrapFd and socketFd in binderRpcTest

This is a follow-up of the cl aosp/2267564.

Test: atest binderRpcTest
Change-Id: I5bf68197aa5f34cc3f700dcc70419fcc0acfb1ef
diff --git a/libs/binder/tests/binderRpcTestService.cpp b/libs/binder/tests/binderRpcTestService.cpp
index cc40995..995e761 100644
--- a/libs/binder/tests/binderRpcTestService.cpp
+++ b/libs/binder/tests/binderRpcTestService.cpp
@@ -42,7 +42,7 @@
     server->setSupportedFileDescriptorTransportModes(serverSupportedFileDescriptorTransportModes);
 
     unsigned int outPort = 0;
-    base::unique_fd unixBootstrapFd(serverConfig.unixBootstrapFd);
+    base::unique_fd socketFd(serverConfig.socketFd);
 
     switch (socketType) {
         case SocketType::PRECONNECTED:
@@ -52,10 +52,10 @@
                     << serverConfig.addr;
             break;
         case SocketType::UNIX_BOOTSTRAP:
-            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(unixBootstrapFd)));
+            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(socketFd)));
             break;
         case SocketType::UNIX_RAW:
-            CHECK_EQ(OK, server->setupRawSocketServer(base::unique_fd(serverConfig.socketFd)));
+            CHECK_EQ(OK, server->setupRawSocketServer(std::move(socketFd)));
             break;
         case SocketType::VSOCK:
             CHECK_EQ(OK, server->setupVsockServer(serverConfig.vsockPort));