Add FeatureProvider for FastPair Settings integration.

Bug: 296507968
Test: FakeFeatureFactory
Change-Id: Ie2e238cb61ca56a1d19e1a13b0234e28e28a785e

src/com/android/settings/connecteddevice/fastpair/FastPairDeviceUpdater.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.connecteddevice.fastpair;
+
+import android.annotation.NonNull;
+import android.content.Context;
+
+/**
+ * Updates the Fast Pair devices. It notifies the upper level whether to add/remove the
+ * preference through {@link DevicePreferenceCallback}
+ */
+public interface FastPairDeviceUpdater {
+
+    /**
+     * Registers the Fast Pair event callback and update the list
+     */
+    default void registerCallback() {
+    }
+
+    /**
+     * Unregisters the Fast Pair event callback
+     */
+    default void unregisterCallback() {
+    }
+
+    /**
+     * Forces to update the list of Fast Pair devices
+     */
+    default void forceUpdate() {
+    }
+
+    /**
+     * Sets the context to generate the {@link Preference}, so it could get the correct theme.
+     */
+    default void setPreferenceContext(@NonNull Context preferenceContext) {
+    }
+}
+