vibrator extension: use checked_interface_cast

Since interface_cast doesn't currently check.

Bug: 136027762
Test: test-vintf-vibrator-ext-client
Change-Id: I4faeba339d8c54f6618e871a46d811943a398e0a
diff --git a/tests/extension/vibrator/aidl/client/test-cpp-client.cpp b/tests/extension/vibrator/aidl/client/test-cpp-client.cpp
index f6f5537..015a345 100644
--- a/tests/extension/vibrator/aidl/client/test-cpp-client.cpp
+++ b/tests/extension/vibrator/aidl/client/test-cpp-client.cpp
@@ -20,9 +20,9 @@
 #include <binder/IServiceManager.h>
 #include <gtest/gtest.h>
 
+using android::checked_interface_cast;
 using android::IBinder;
 using android::IInterface;
-using android::interface_cast;
 using android::OK;
 using android::sp;
 using android::waitForVintfService;
@@ -44,7 +44,7 @@
     // getting the extension
     sp<IBinder> ext;
     ASSERT_EQ(OK, IInterface::asBinder(vib)->getExtension(&ext));
-    sp<ICustomVibrator> cvib = interface_cast<ICustomVibrator>(ext);
+    sp<ICustomVibrator> cvib = checked_interface_cast<ICustomVibrator>(ext);
     ASSERT_NE(nullptr, cvib.get());
 
     // calling extension method