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

services/keyboard_native/BUILD.gn

Index: services/keyboard_native/BUILD.gn
diff --git a/services/keyboard_native/BUILD.gn b/services/keyboard_native/BUILD.gn
index fda1cba6f1d75938b123a44495710c16ec9bea6e..69f7f56c5088e2bfe83b156e292c81cbf8b4a2ae 100644
--- a/services/keyboard_native/BUILD.gn
+++ b/services/keyboard_native/BUILD.gn
@@ -3,6 +3,31 @@
 # 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 = [
@@ -37,6 +62,11 @@ mojo_native_application("keyboard_native") {
     "//mojo/services/view_manager/public/cpp",
     "//mojo/skia",
     "//skia",
+    "//ui/gfx",
     "//ui/gfx/geometry",
+    ":action_icon",
+    ":delete_icon",
+    ":lower_case_icon",
+    ":upper_case_icon",
   ]
 }