Move the download code to new directories:

chrome/browser/save_package.cc

 // Copyright (c) 2006-2008 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/save_package.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/task.h"
 #include "base/thread.h"
 #include "base/win_util.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/download_manager.h"
+#include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/render_process_host.h"
 #include "chrome/browser/render_view_host.h"
 #include "chrome/browser/render_view_host_delegate.h"
 #include "chrome/browser/resource_dispatcher_host.h"
 #include "chrome/browser/save_file.h"
 #include "chrome/browser/save_file_manager.h"
 #include "chrome/browser/save_page_model.h"
 #include "chrome/browser/tab_util.h"
 #include "chrome/browser/web_contents.h"
@@ skipping 1028 matching lines @@
   if (available_length > dir_path_length) {
     *pure_file_name =
         pure_file_name->substr(0, available_length - dir_path_length);
     return true;
   } else {
     pure_file_name->clear();
     return false;
   }
 }