[Shadows] Add api to set global shadow settings (4/n)

Bug: 136561771
Test: go/wm-smoke
Change-Id: Icdb9e2f2b79ac5d461a9a2a323792962da3d3e26
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index a4fdb35..c4f35ae 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -833,6 +833,12 @@
     }
     status_t notifyPowerHint(int32_t /*hintId*/) override { return NO_ERROR; }
 
+    status_t setGlobalShadowSettings(const half4& /*ambientColor*/, const half4& /*spotColor*/,
+                                     float /*lightPosY*/, float /*lightPosZ*/,
+                                     float /*lightRadius*/) override {
+        return NO_ERROR;
+    }
+
 protected:
     IBinder* onAsBinder() override { return nullptr; }