Add Robolectric makefile and modify Settings Manifest for testing.

Bug: 30918570
Change-Id: I4ae998676757b4985833fac5ba05d7685e29a8a8

tests/robotests/src/com/android/settings/TestConfig.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016 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;
+
+/**
+ * Constants for Robolectric config
+ */
+public class TestConfig {
+    public static final int SDK_VERSION = 23;
+    public static final String MANIFEST_PATH = "packages/apps/Settings/AndroidManifest.xml";
+}