Use newly introduced hidl_handle.

Bug: 32089785
Test: builds
Change-Id: I27c7d3945e1fe390661bf322987011a00fe9b3fe
diff --git a/tests/bar/1.0/default/Bar.h b/tests/bar/1.0/default/Bar.h
index 4e22b61..29eedec 100644
--- a/tests/bar/1.0/default/Bar.h
+++ b/tests/bar/1.0/default/Bar.h
@@ -64,7 +64,7 @@
 
     // Methods from ::android::hardware::tests::bar::V1_0::IBar follow.
     Return<void> thisIsNew()  override;
-    Return<void> expectNullHandle(const native_handle_t* h, const Abc& xyz, expectNullHandle_cb _hidl_cb)  override;
+    Return<void> expectNullHandle(const hidl_handle& h, const Abc& xyz, expectNullHandle_cb _hidl_cb)  override;
 
 private:
     sp<IFoo> mFoo;