Keep only base/extractor.[cc|h].

ui/ui_metrics.cc

-// Copyright 2008-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-
-#include "omaha/ui/ui_metrics.h"
-
-namespace omaha {
-
-DEFINE_METRIC_timing(worker_ui_cancel_ms);
-DEFINE_METRIC_count(worker_ui_cancels);
-
-DEFINE_METRIC_count(worker_ui_click_x);
-
-DEFINE_METRIC_count(worker_ui_esc_key_total);
-
-DEFINE_METRIC_count(worker_ui_restart_browser_buttons_displayed);
-DEFINE_METRIC_count(worker_ui_restart_browser_now_click);
-DEFINE_METRIC_count(worker_ui_restart_all_browsers_buttons_displayed);
-DEFINE_METRIC_count(worker_ui_restart_all_browsers_now_click);
-DEFINE_METRIC_count(worker_ui_reboot_buttons_displayed);
-DEFINE_METRIC_count(worker_ui_reboot_now_click);
-
-DEFINE_METRIC_count(worker_ui_get_help_displayed);
-DEFINE_METRIC_count(worker_ui_get_help_click);
-
-
-}  // namespace omaha