Cleanup: Remove unneeded headers from app/

chrome/browser/history/history.cc

 // Copyright (c) 2010 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.
 
 // The history system runs on a background thread so that potentially slow
 // database operations don't delay the browser. This backend processing is
 // represented by HistoryBackend. The HistoryService's job is to dispatch to
 // that thread.
 //
 // Main thread                       History thread
 // -----------                       --------------
 // HistoryService <----------------> HistoryBackend
 //                                   -> HistoryDatabase
 //                                      -> SQLite connection to History
 //                                   -> ArchivedDatabase
 //                                      -> SQLite connection to Archived History
 //                                   -> TextDatabaseManager
 //                                      -> SQLite connection to one month's data
 //                                      -> SQLite connection to one month's data
 //                                      ...
 //                                   -> ThumbnailDatabase
 //                                      -> SQLite connection to Thumbnails
 //                                         (and favicons)
 
 #include "chrome/browser/history/history.h"
 
-#include "app/l10n_util.h"
 #include "base/callback.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/ref_counted.h"
+#include "base/string_util.h"
 #include "base/task.h"
 #include "chrome/browser/autocomplete/history_url_provider.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/history/download_types.h"
 #include "chrome/browser/history/history_backend.h"
 #include "chrome/browser/history/history_notifications.h"
 #include "chrome/browser/history/history_types.h"
@@ skipping 711 matching lines @@
 
 void HistoryService::StartTopSitesMigration() {
   history::TopSites* ts = profile_->GetTopSites();
   ts->StartMigration();
 }
 
 void HistoryService::OnTopSitesReady() {
   ScheduleAndForget(PRIORITY_NORMAL,
                     &HistoryBackend::MigrateThumbnailsDatabase);
 }