Removed webui_generator and new OOBE UI placeholder.

chrome/browser/chromeos/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
@@ skipping 53 matching lines @@
     "//components/onc",
     "//components/ownership",
     "//components/pairing",
     "//components/policy",
 
     # This depends directly on the variations target, rather than just
     # transitively via the common target because the proto sources need to
     # be generated before code in this target can start building.
     "//components/strings",
     "//components/variations",
-    "//components/webui_generator",
     "//content/public/browser",
     "//content/public/common",
     "//crypto",
     "//dbus",
     "//device/bluetooth",
     "//device/hid",
     "//media",
     "//media/mojo/interfaces",
     "//net",
     "//ppapi/proxy:ipc",  # For PpapiMsg_LoadPlugin
@@ skipping 21 matching lines @@
     "//ui/aura",
     "//ui/base",
     "//ui/chromeos:ui_chromeos",
     "//ui/compositor",
     "//ui/display",
     "//ui/events/devices",
     "//ui/events/platform",
     "//ui/events:dom_keycode_converter",
     "//ui/file_manager",
     "//ui/message_center",
-    "//ui/oobe:oobe",
-    "//ui/oobe:oobe_gen",
     "//ui/surface",
     "//ui/views",
     "//ui/views/controls/webview",
     "//ui/web_dialogs",
     "//url",
     "//v8",
     ":attestation_proto",
     ":device_policy_proto",
     ":drive_proto",
   ]
@@ skipping 47 matching lines @@
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
     "attestation/attestation_signed_data.proto",
   ]
 }