Remove tools/clang (this will break things temporarily).

tools/clang/plugins/Options.h

-// 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.
-
-#ifndef TOOLS_CLANG_PLUGINS_OPTIONS_H_
-#define TOOLS_CLANG_PLUGINS_OPTIONS_H_
-
-namespace chrome_checker {
-
-struct Options {
-  Options()
-      : check_base_classes(false),
-        enforce_overriding_blink(false),
-        enforce_in_thirdparty_webkit(false),
-        check_enum_last_value(false),
-        with_ast_visitor(false),
-        check_templates(false),
-        warn_only(false) {}
-
-  bool check_base_classes;
-  bool enforce_overriding_blink;  // Blink base-class use
-  bool enforce_in_thirdparty_webkit;  // Use in Blink code itself
-  bool check_enum_last_value;
-  bool with_ast_visitor;
-  bool check_templates;
-  bool warn_only;
-};
-
-}  // namespace chrome_checker
-
-#endif  // TOOLS_CLANG_PLUGINS_OPTIONS_H_