Moves components/mus/examples into mash

mash/example/BUILD.gn

Index: mash/example/BUILD.gn
diff --git a/mash/example/BUILD.gn b/mash/example/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..07198dd6c15244935d4b62e6296acf1630b36720
--- /dev/null
+++ b/mash/example/BUILD.gn
@@ -0,0 +1,18 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//testing/test.gni")
+
+group("example") {
+  testonly = true
+
+  deps = [
+    "//mash/example/main",
+    "//mash/example/mock_sysui",
+    "//mash/example/views_examples",
+    "//mash/example/window_type_launcher",
+    "//mash/wm",
+    "//mojo/runner",
+  ]
+}