Start building the unit test to see what else we need to build

Test: get a lot of link errors

Bug: 171711491
Change-Id: I12699a802a5415e21694a88678e47bba3a1ec439
diff --git a/stream-servers/testlibs/mouse.h b/stream-servers/testlibs/mouse.h
new file mode 100644
index 0000000..d51b96d
--- /dev/null
+++ b/stream-servers/testlibs/mouse.h
@@ -0,0 +1,21 @@
+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef SAMPLE_UTIL_MOUSE_H
+#define SAMPLE_UTIL_MOUSE_H
+
+enum MouseButton
+{
+    MOUSEBUTTON_UNKNOWN,
+    MOUSEBUTTON_LEFT,
+    MOUSEBUTTON_RIGHT,
+    MOUSEBUTTON_MIDDLE,
+    MOUSEBUTTON_BUTTON4,
+    MOUSEBUTTON_BUTTON5,
+    MOUSEBUTTON_COUNT,
+};
+
+#endif // SAMPLE_UTIL_MOUSE_H