Remove haptic feedback from face detect operations.

Also removes some unused / dead haptic code.

Fix: 263762558
Test: atest FaceDetectClientTest
Test: manual (setup with face/fp, set lockscreen bypass for face, lockout device, press power button to attempt login, look at phone to trigger bouncer, confirm Face detect operation has visual but not haptic feedback)
Change-Id: I943aae5da6e50f91bd0b91cc01f895c9732e26d5

services/core/java/com/android/server/biometrics/sensors/AcquisitionClient.java

@@ -206,17 +206,6 @@ public abstract class AcquisitionClient<T> extends HalClientMonitor<T> implement
         }
     }
 
-    protected final void vibrateError() {
-        Vibrator vibrator = getContext().getSystemService(Vibrator.class);
-        if (vibrator != null && mShouldVibrate) {
-            vibrator.vibrate(Process.myUid(),
-                    getContext().getOpPackageName(),
-                    ERROR_VIBRATION_EFFECT,
-                    getClass().getSimpleName() + "::error",
-                    HARDWARE_FEEDBACK_VIBRATION_ATTRIBUTES);
-        }
-    }
-
     @Override
     public boolean isInterruptable() {
         return true;

services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceDetectClient.java

@@ -72,7 +72,7 @@ public class FaceDetectClient extends AcquisitionClient<AidlSession> implements
             boolean isStrongBiometric, SensorPrivacyManager sensorPrivacyManager) {
         super(context, lazyDaemon, token, listener, options.getUserId(),
                 options.getOpPackageName(), 0 /* cookie */, options.getSensorId(),
-                true /* shouldVibrate */, logger, biometricContext);
+                false /* shouldVibrate */, logger, biometricContext);
         setRequestId(requestId);
         mIsStrongBiometric = isStrongBiometric;
         mSensorPrivacyManager = sensorPrivacyManager;

services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceDetectClientTest.java

@@ -24,6 +24,7 @@ import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.same;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
 import static org.mockito.Mockito.when;
 
 import android.hardware.biometrics.common.AuthenticateReason;
@@ -34,6 +35,7 @@ import android.hardware.face.FaceAuthenticateOptions;
 import android.os.IBinder;
 import android.os.PowerManager;
 import android.os.RemoteException;
+import android.os.Vibrator;
 import android.platform.test.annotations.Presubmit;
 import android.testing.TestableContext;
 
@@ -75,6 +77,8 @@ public class FaceDetectClientTest {
     @Mock
     private IBinder mToken;
     @Mock
+    private Vibrator mVibrator;
+    @Mock
     private ClientMonitorCallbackConverter mClientMonitorCallbackConverter;
     @Mock
     private BiometricLogger mBiometricLogger;
@@ -94,6 +98,8 @@ public class FaceDetectClientTest {
 
     @Before
     public void setup() {
+        mContext.addMockSystemService(Vibrator.class, mVibrator);
+
         when(mBiometricContext.updateContext(any(), anyBoolean())).thenAnswer(
                 i -> i.getArgument(0));
     }
@@ -147,6 +153,16 @@ public class FaceDetectClientTest {
         verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
     }
 
+    @Test
+    public void doesNotPlayHapticOnInteractionDetected() throws Exception {
+        final FaceDetectClient client = createClient();
+        client.start(mCallback);
+        client.onInteractionDetected();
+        client.stopHalOperation();
+
+        verifyZeroInteractions(mVibrator);
+    }
+
     private FaceDetectClient createClient() throws RemoteException {
         return createClient(100 /* version */);
     }