Settings: Add SMS Mirroring.

Bug: 37546615

Test: Updated Robolectric suite with new unit tests.

Change-Id: I02e1723e1b125b004ff679d6242df14bca4f08ce

src/com/android/settings/connecteddevice/SmsMirroringPreferenceController.java

@@ -0,0 +1,45 @@
+/*
+ * 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.connecteddevice;
+
+import android.content.Context;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+public class SmsMirroringPreferenceController extends AbstractPreferenceController
+        implements PreferenceControllerMixin {
+
+    static final String KEY_SMS_MIRRORING = "sms_mirroring";
+
+    private SmsMirroringFeatureProvider mFeatureProvider;
+
+    public SmsMirroringPreferenceController(Context context) {
+        super(context);
+        mFeatureProvider = FeatureFactory.getFactory(context).getSmsMirroringFeatureProvider();
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return mFeatureProvider.shouldShowSmsMirroring(mContext);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_SMS_MIRRORING;
+    }
+}