Mus experiment in content shell on Android.

content/shell/BUILD.gn

Index: content/shell/BUILD.gn
diff --git a/content/shell/BUILD.gn b/content/shell/BUILD.gn
index eb33daf17fa433590eb8324d2343fe2b4479b356..1ceae0faa30a23b89e9a6798d9cee9ffb692407e 100644
--- a/content/shell/BUILD.gn
+++ b/content/shell/BUILD.gn
@@ -245,6 +245,9 @@ static_library("content_shell_lib") {
     "//net:net_resources",
     "//sandbox",
     "//services/service_manager/public/cpp",
+    "//services/tracing:lib",
+    "//services/ui:lib",
+    "//services/ui/ime/test_ime_driver:lib",
     "//skia",
     "//storage/browser",
     "//testing/gmock",
@@ -308,7 +311,10 @@ static_library("content_shell_lib") {
   }
 
   if (is_android) {
-    deps += [ "//content/shell/android:content_shell_jni_headers" ]
+    deps += [
+      "//content/shell/android:content_shell_jni_headers",
+      "//services/ui/demo:mus_demo_lib",
+    ]
   }
 
   if (is_posix && !is_mac) {