Mus experiment in content shell on Android.

content/shell/android/BUILD.gn

Index: content/shell/android/BUILD.gn
diff --git a/content/shell/android/BUILD.gn b/content/shell/android/BUILD.gn
index 738cee80f6b67daaf7c44585f62775291a9afd65..f47834b4c923a79712b46b09752f3e5d3ea99fbe 100644
--- a/content/shell/android/BUILD.gn
+++ b/content/shell/android/BUILD.gn
@@ -25,6 +25,10 @@ shared_library("libcontent_shell_content_view") {
     "//content/shell:content_shell_lib",
     "//content/shell:pak",
     "//media/base/android",
+    "//services/tracing:lib",
+    "//services/ui:lib",
+    "//services/ui/demo:mus_demo_lib",
+    "//services/ui/ime/test_ime_driver:lib",
     "//skia",
   ]
   sources = [
@@ -88,6 +92,7 @@ android_library("content_shell_apk_java") {
     "//media/capture/video/android:capture_java",
     "//net/android:net_java",
     "//ui/android:ui_java",
+    "//ui/platform_window/android:platform_window_java",
   ]
 
   # Supply manifest for linting.