Refactors keyboard related code so mash can use a keyboard

mash/BUILD.gn

 # 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")
 
 # Target that builders build.
 group("all") {
   testonly = true
 
   deps = [
     ":tests",
     "//mash/example",
     "//mash/screenlock",
     "//mash/shell",
     "//mash/task_viewer",
   ]
+
+  if (use_ash) {
+    deps += [ "//ash/mus" ]
+  }

[sadrul, 2016/02/10 23:57:14]

//mash/shell adds //ash/mus as a data-dependency when use_ash is turned on.

[sky, 2016/02/11 18:00:24]

Done.

 }
 
 group("tests") {
   testonly = true
 
   deps = [
     ":mash_unittests",
     "//mash/wm:tests",
   ]
 }
 
 test("mash_unittests") {
   deps = [
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_config",
     "//base/test:test_support",
     "//mash/wm:unittests",
     "//mojo/platform_handle:platform_handle_impl",
   ]
 }