Add feature provider for Bluetooth

Also add method to check whether pairing page is enabled.

Bug: 38134564
Test: RunSettingsGoogleRoboTests
Change-Id: Ib74ece46f9624242895a366eac889957924f84c6

src/com/android/settings/bluetooth/BluetoothFeatureProvider.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2017 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.bluetooth;
+
+/**
+ * Feature provider for bluetooth feature
+ */
+public interface BluetoothFeatureProvider {
+    /**
+     * Check whether additional pairing page is enabled
+     */
+    boolean isPairingPageEnabled();
+}