Support 'Conditional' idl attribute.

client/dom/generated/src/interface/InspectorFrontendHost.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING: Do not edit - generated code.
-
-interface InspectorFrontendHost {
-
-  void bringToFront();
-
-  bool canSaveAs();
-
-  void closeWindow();
-
-  void copyText(String text);
-
-  String hiddenPanels();
-
-  void inspectedURLChanged(String newURL);
-
-  String loadResourceSynchronously(String url);
-
-  void loaded();
-
-  String localizedStringsURL();
-
-  void moveWindowBy(num x, num y);
-
-  void openInNewTab(String url);
-
-  String platform();
-
-  String port();
-
-  void recordActionTaken(int actionCode);
-
-  void recordPanelShown(int panelCode);
-
-  void recordSettingChanged(int settingChanged);
-
-  void requestAttachWindow();
-
-  void requestDetachWindow();
-
-  void requestSetDockSide(String side);
-
-  void saveAs(String fileName, String content);
-
-  void sendMessageToBackend(String message);
-
-  void setAttachedWindowHeight(int height);
-
-  void setInjectedScriptForOrigin(String origin, String script);
-
-  void showContextMenu(MouseEvent event, Object items);
-}