add test for binder inheritance.

Test: hidl_test
Test: `make hidl_test_java` compiles
Change-Id: Ie9217b79e369f2a1e7a7c9ed02524b17e3fc8b7f
diff --git a/tests/inheritance/1.0/default/Child.cpp b/tests/inheritance/1.0/default/Child.cpp
new file mode 100644
index 0000000..66720b3
--- /dev/null
+++ b/tests/inheritance/1.0/default/Child.cpp
@@ -0,0 +1,42 @@
+#define LOG_TAG "hidl_test"
+#include <android-base/logging.h>
+
+#include "Child.h"
+
+namespace android {
+namespace hardware {
+namespace tests {
+namespace inheritance {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::tests::inheritance::V1_0::IGrandparent follow.
+Return<void> Child::doGrandparent()  {
+    ALOGI("SERVER(Bar) Child::doGrandparent");
+    return Void();
+}
+
+// Methods from ::android::hardware::tests::inheritance::V1_0::IParent follow.
+Return<void> Child::doParent()  {
+    ALOGI("SERVER(Bar) Child::doParent");
+    return Void();
+}
+
+
+// Methods from ::android::hardware::tests::inheritance::V1_0::IChild follow.
+Return<void> Child::doChild()  {
+    ALOGI("SERVER(Bar) Child::doChild");
+    return Void();
+}
+
+
+IChild* HIDL_FETCH_IChild(const char* /* name */) {
+    return new Child();
+}
+
+} // namespace implementation
+}  // namespace V1_0
+}  // namespace inheritance
+}  // namespace tests
+}  // namespace hardware
+}  // namespace android