Removed webui_generator and new OOBE UI placeholder.

components/webui_generator/generator/wug.gni

-# 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.
-
-# Generates native and HTML/JS supporting code for Web UI element from element's
-# declaration JSON file.
-#
-# Parameters:
-#
-#   source (required)
-#      Declaration file.
-#
-#   deps (optional)
-#   visibility (optional)
-#      Normal meanings.
-#
-# Example:
-# wug("some_type_wug_generated") {
-#   source = "some_type.json"
-# }
-#
-# Target's name should be deduced from declaration file name by removing
-# extension and adding '_wug_generated' prefix. This is needed to properly
-# handle dependencies between declaration files and their imports.
-#
-# For declaration file with a full path 'src/full/path/some_type.json' 5 files
-# will be generated and compiled:
-#   $root_gen_dir/wug/full/path/some_type_export.h
-#   $root_gen_dir/wug/full/path/some_type_view.h
-#   $root_gen_dir/wug/full/path/some_type_view_model.cc
-#   $root_gen_dir/wug/full/path/some_type_view_model.h
-#   $root_gen_dir/wug/full/path/some_type_webui_view.cc
-
-template("wug") {
-  declaration_path = invoker.source
-  generator_dir = "//components/webui_generator/generator"
-  generator_path = "$generator_dir/gen_sources.py"
-  src_root = rebase_path("//", root_build_dir)
-
-  helper_path = "$generator_dir/build_helper.py"
-  target_name = "${target_name}"
-  action_name = target_name + "_gen"
-  group_name = target_name
-  out_dir = "$root_gen_dir/wug"
-
-  helper_args = [
-    rebase_path(declaration_path, root_build_dir),
-    "--destination",
-    rebase_path(out_dir, root_build_dir),
-    "--root",
-    src_root,
-    "--gn",
-    "--output",
-  ]
-
-  expected_target_name =
-      exec_script(helper_path, helper_args + [ "target_name" ], "trim string")
-  assert(target_name == expected_target_name,
-         "Wrong target name. " + "Expected '" + expected_target_name +
-             "', got '" + target_name + "'.")
-
-  action(action_name) {
-    visibility = [ ":$group_name" ]
-
-    script = generator_path
-    sources = [
-      "$generator_dir/declaration.py",
-      "$generator_dir/export_h.py",
-      "$generator_dir/html_view.py",
-      "$generator_dir/util.py",
-      "$generator_dir/view_model.py",
-      "$generator_dir/web_ui_view.py",
-    ]
-    inputs = [
-      declaration_path,
-    ]
-    inputs +=
-        exec_script(helper_path, helper_args + [ "imports" ], "list lines")
-    common_prefix = process_file_template(
-            [ declaration_path ],
-            "$out_dir/{{source_root_relative_dir}}/{{source_name_part}}_")
-    common_prefix = common_prefix[0]
-    outputs = [
-      common_prefix + "export.h",
-      common_prefix + "view_model.h",
-      common_prefix + "view_model.cc",
-      common_prefix + "web_ui_view.h",
-      common_prefix + "web_ui_view.cc",
-    ]
-    args = [
-      rebase_path(declaration_path, root_build_dir),
-      "--root",
-      src_root,
-      "--destination",
-      rebase_path(out_dir, root_build_dir),
-    ]
-
-    if (defined(invoker.deps)) {
-      deps = invoker.deps
-    }
-    if (defined(invoker.public_deps)) {
-      public_deps = invoker.public_deps
-    }
-  }
-
-  source_set(target_name) {
-    if (defined(invoker.visibility)) {
-      visibility = invoker.visibility
-    }
-
-    sources = get_target_outputs(":$action_name")
-    defines = [ exec_script(helper_path,
-                            helper_args + [ "impl_macro" ],
-                            "trim string") ]
-    deps = [
-      ":$action_name",
-      "//base",
-      "//components/login",
-      "//components/strings",
-    ]
-    deps += exec_script(helper_path,
-                        helper_args + [ "import_dependencies" ],
-                        "list lines")
-    public_deps = [
-      "//components/webui_generator",
-    ]
-
-    all_dependent_configs =
-        [ "//components/webui_generator:wug_generated_config" ]
-  }
-}