Split UserMetrics into API vs. implementation. Move API to content/public.

chrome/browser/first_run/first_run_win.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/first_run/first_run.h"
 
 #include <shlobj.h>
 #include <windows.h>
 
 #include <set>
@@ skipping 18 matching lines @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_result_codes.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/worker_thread_ticker.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/install_util.h"
 #include "chrome/installer/util/master_preferences.h"
 #include "chrome/installer/util/shell_util.h"
 #include "chrome/installer/util/util_constants.h"
-#include "content/browser/user_metrics.h"
 #include "content/public/browser/notification_service.h"
+#include "content/public/browser/user_metrics.h"
 #include "google_update_idl.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_switches.h"
 
+using content::UserMetricsAction;
+
 namespace {
 
 // Helper class that performs delayed first-run tasks that need more of the
 // chrome infrastructure to be up and running before they can be attempted.
 class FirstRunDelayedTasks : public content::NotificationObserver {
  public:
   enum Tasks {
     NO_TASK,
     INSTALL_EXTENSIONS
   };
@@ skipping 352 matching lines @@
       parent_window,
       static_cast<uint16>(items_to_import),
       importer_host,
       &importer_observer,
       importer_list->GetSourceProfileForImporterType(importer_type),
       profile,
       true);
   importer_observer.RunLoop();
   return importer_observer.import_result();
 }