Removing race condition accessing shared binder object.

Test: incrementally installing two apks at the same time
Bug: b/150411019
Change-Id: I81231edf7a32470542ec529aa305b4f9fb2b80e3
diff --git a/services/incremental/test/IncrementalServiceTest.cpp b/services/incremental/test/IncrementalServiceTest.cpp
index 6002226..f5b88d9 100644
--- a/services/incremental/test/IncrementalServiceTest.cpp
+++ b/services/incremental/test/IncrementalServiceTest.cpp
@@ -100,10 +100,11 @@
                           const sp<IDataLoaderStatusListener>&) override {
         return binder::Status::ok();
     }
-    binder::Status start() override { return binder::Status::ok(); }
-    binder::Status stop() override { return binder::Status::ok(); }
-    binder::Status destroy() override { return binder::Status::ok(); }
-    binder::Status prepareImage(const std::vector<InstallationFileParcel>&,
+    binder::Status start(int32_t) override { return binder::Status::ok(); }
+    binder::Status stop(int32_t) override { return binder::Status::ok(); }
+    binder::Status destroy(int32_t) override { return binder::Status::ok(); }
+    binder::Status prepareImage(int32_t,
+                                const std::vector<InstallationFileParcel>&,
                                 const std::vector<std::string>&) override {
         return binder::Status::ok();
     }