CTS tests for Accessibility Button APIs

Bug:29231271
Change-Id: I1af21f93c7c15ae8387ff75dc55652220d250084
Test: This is a test. This is only a test.
diff --git a/tests/accessibilityservice/res/xml/stub_accessibility_button_service.xml b/tests/accessibilityservice/res/xml/stub_accessibility_button_service.xml
new file mode 100644
index 0000000..cbf6e7e
--- /dev/null
+++ b/tests/accessibilityservice/res/xml/stub_accessibility_button_service.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- 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.
+-->
+
+<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
+                       android:description="@string/stub_accessibility_button_service_description"
+                       android:accessibilityEventTypes="typeAllMask"
+                       android:accessibilityFeedbackType="feedbackGeneric"
+                       android:accessibilityFlags="flagRequestAccessibilityButton"
+                       android:notificationTimeout="0" />
\ No newline at end of file