Expose sky KeyboardService in android mojo_shell

sky/services/keyboard/BUILD.gn

Index: sky/services/keyboard/BUILD.gn
diff --git a/sky/services/keyboard/BUILD.gn b/sky/services/keyboard/BUILD.gn
index 20ac793b24a0c8ba2a29fe37cf120321fe831500..28a903b3f7674950734546fad3a484777c08b198 100644
--- a/sky/services/keyboard/BUILD.gn
+++ b/sky/services/keyboard/BUILD.gn
@@ -4,7 +4,6 @@
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
-import("//mojo/public/tools/bindings/mojom.gni")
 
 android_library("keyboard") {
   java_files = [
@@ -15,12 +14,6 @@ android_library("keyboard") {
   deps = [
     "//mojo/public/java:bindings",
     "//mojo/public/java:system",
-    ":interfaces_java",
-  ]
-}
-
-mojom("interfaces") {
-  sources = [
-    "keyboard.mojom",
+    "//mojo/services/keyboard/public/interfaces:interfaces_java",
   ]
 }