It is time.

ui/views/controls/webview/webview.gyp

-# Copyright (c) 2012 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.
-
-{
-  'variables': {
-    'chromium_code': 1,
-  },
-  'targets': [
-    {
-      # GN version: //ui/views/controls/webview
-      'target_name': 'webview',
-      'type': '<(component)',
-      'dependencies': [
-        '../../../../base/base.gyp:base',
-        '../../../../base/base.gyp:base_i18n',
-        '../../../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
-        '../../../../content/content.gyp:content_browser',
-        '../../../../skia/skia.gyp:skia',
-        '../../../../url/url.gyp:url_lib',
-        '../../../base/ui_base.gyp:ui_base',
-        '../../../events/events.gyp:events',
-        '../../../gfx/gfx.gyp:gfx',
-        '../../../gfx/gfx.gyp:gfx_geometry',
-        '../../../web_dialogs/web_dialogs.gyp:web_dialogs',
-        '../../views.gyp:views',
-      ],
-      'defines': [
-        'WEBVIEW_IMPLEMENTATION',
-      ],
-      'sources': [
-        # Note: file list duplicated in GN build.
-        'unhandled_keyboard_event_handler.cc',
-        'unhandled_keyboard_event_handler.h',
-        'unhandled_keyboard_event_handler_linux.cc',
-        'unhandled_keyboard_event_handler_win.cc',
-        'web_dialog_view.cc',
-        'web_dialog_view.h',
-        'webview.cc',
-        'webview.h',
-        'webview_export.h',
-      ],
-    },
-  ],
-}