Final step of the java_cpp_template -> java_cpp_enum migration.

components/bookmarks/common/android/BUILD.gn

 # Copyright 2014 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("//build/config/android/rules.gni")
 
 # GYP: //components/bookmarks.gyp:bookmarks_java
 android_library("bookmarks_java") {
   deps = [
     "//base:base_java",
   ]
   srcjar_deps = [
     ":bookmark_type_javagen",
   ]
   DEPRECATED_java_in_dir = "java/src"
 }
 
 # GYP: //components/bookmarks.gyp:bookmarks_jni_headers
 generate_jni("bookmarks_jni_headers") {
   jni_package = "components/bookmarks"
   sources = [
     "java/src/org/chromium/components/bookmarks/BookmarkId.java"
   ]
 }
 
 # GYP: //components/bookmarks.gyp:bookmarks_type_java
-java_cpp_template("bookmark_type_javagen") {
+java_cpp_enum("bookmark_type_javagen") {
   sources = [
-    "java/src/org/chromium/components/bookmarks/BookmarkType.template",
+    "bookmark_type.h",
   ]
-  package_name = "org/chromium/components/bookmarks"
-  inputs = [
-    "bookmark_type_list.h",
+  outputs = [
+    "org/chromium/components/bookmarks/BookmarkType.java",
   ]
 }