Move implementation of BrowserList onto an inner, instantiatable class, BrowserListImpl.

chrome/browser/importer/importer_host.cc

 // 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.
 
 #include "chrome/browser/importer/importer_host.h"
 
 #include "base/bind.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/importer/firefox_profile_lock.h"
 #include "chrome/browser/importer/importer.h"
 #include "chrome/browser/importer/importer_lock_dialog.h"
 #include "chrome/browser/importer/importer_progress_observer.h"
 #include "chrome/browser/importer/importer_type.h"
 #include "chrome/browser/importer/in_process_importer_bridge.h"
 #include "chrome/browser/importer/toolbar_importer_utils.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
+#include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/simple_message_box.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_source.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
@@ skipping 231 matching lines @@
                            const content::NotificationDetails& details) {
   DCHECK(type == chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED);
   registrar_.RemoveAll();
   InvokeTaskIfDone();
 }
 
 void ImporterHost::OnBrowserRemoved(Browser* browser) {
   if (browser_ == browser)
     browser_ = NULL;
 }