Remove unnecessary use_new_wrapper_types flag for some mojom targets.

ui/keyboard/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("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 import("//third_party/google_input_tools/closure.gni")
 import("//third_party/google_input_tools/inputview.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ skipping 120 matching lines @@
   path = rebase_path("//third_party/google_input_tools")
 }
 
 mojom("mojom") {
   sources = [
     "keyboard.mojom",
   ]
   deps = [
     "//ui/gfx/geometry/mojo",
   ]
-
-  use_new_wrapper_types = false
 }
 
 test("keyboard_unittests") {
   sources = [
     "keyboard_controller_unittest.cc",
     "keyboard_util_unittest.cc",
     "test/run_all_unittests.cc",
   ]
 
   deps = [
     ":keyboard",
     "//base",
     "//base/test:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/aura:test_support",
     "//ui/base",
     "//ui/base:test_support",
     "//ui/base/ime",
     "//ui/compositor:test_support",
     "//ui/events:test_support",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl:test_support",
     "//ui/wm",
   ]
 }