mustash: Use ui::chromeos::EventRewriter in mus

services/ui/ws/BUILD.gn

Index: services/ui/ws/BUILD.gn
diff --git a/services/ui/ws/BUILD.gn b/services/ui/ws/BUILD.gn
index c93c16a61918c003c1788c348567ad57a66a6a16..cb28f2def647d0ae4f1be5d9f71eb0cf4a3d1f71 100644
--- a/services/ui/ws/BUILD.gn
+++ b/services/ui/ws/BUILD.gn
@@ -151,6 +151,9 @@ static_library("lib") {
   if (use_ozone) {
     public_deps += [ "//ui/ozone:ozone" ]
   }
+  if (is_chromeos) {
+    public_deps += [ "//ui/chromeos/events" ]

[sky, 2017/03/16 20:29:52]

I want to make sure we don't end up pulling in any unwanted deps. Can you add:
  assert_no_deps = [
    "//ash
    "//content/public/browser",
    "//content/public/common",
    "//ui/aura",
    "//ui/views",
  ]

+  }
 }
 
 static_library("test_interface") {