Add the ability for keys to be drawn as an image.

services/keyboard_native/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("//mojo/public/mojo_application.gni")
+import("//mojo/tools/embed/rules.gni")
+
+embed_file("action_icon") {
+  source = "res/Emoticon"
+  namespace = "keyboard_native"
+  variable = "kActionIcon"
+}
+
+embed_file("delete_icon") {
+  source = "res/Delete"
+  namespace = "keyboard_native"
+  variable = "kDeleteIcon"
+}
+
+embed_file("lower_case_icon") {
+  source = "res/ArrowDown"
+  namespace = "keyboard_native"
+  variable = "kLowerCaseIcon"
+}
+
+embed_file("upper_case_icon") {
+  source = "res/ArrowUp"
+  namespace = "keyboard_native"
+  variable = "kUpperCaseIcon"
+}
 
 mojo_native_application("keyboard_native") {
   sources = [
     "key_layout.cc",
     "key_layout.h",
     "keyboard_service_impl.cc",
     "keyboard_service_impl.h",
     "main.cc",
     "material_splash_animation.cc",
     "material_splash_animation.h",
@@ skipping 14 matching lines @@
     "//mojo/public/interfaces/application",
     "//mojo/services/geometry/public/cpp",
     "//mojo/services/geometry/public/interfaces",
     "//mojo/services/keyboard/public/interfaces",
     "//mojo/services/surfaces/public/cpp",
     "//mojo/services/surfaces/public/interfaces",
     "//mojo/services/surfaces/public/interfaces:surface_id",
     "//mojo/services/view_manager/public/cpp",
     "//mojo/skia",
     "//skia",
+    "//ui/gfx",
     "//ui/gfx/geometry",
+    ":action_icon",
+    ":delete_icon",
+    ":lower_case_icon",
+    ":upper_case_icon",
   ]
 }