Convert libui to Android.bp

Along with the libinput tests, which depend on libui. For more
information on Soong, see build/soong/README.md

Change-Id: Id4fbeb114d03e37556dca59a2c9f5c9abb0a1825
diff --git a/libs/ui/tests/Android.bp b/libs/ui/tests/Android.bp
new file mode 100644
index 0000000..8cdab8c
--- /dev/null
+++ b/libs/ui/tests/Android.bp
@@ -0,0 +1,31 @@
+//
+// Copyright (C) 2014 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.
+//
+
+cc_test {
+    name: "Region_test",
+    shared_libs: ["libui"],
+    srcs: ["Region_test.cpp"],
+}
+
+cc_test {
+    name: "vec_test",
+    srcs: ["vec_test.cpp"],
+}
+
+cc_test {
+    name: "mat_test",
+    srcs: ["mat_test.cpp"],
+}