Move FileCopyManager to background page.

chrome/browser/resources/file_manager/main.html

Index: chrome/browser/resources/file_manager/main.html
===================================================================
--- chrome/browser/resources/file_manager/main.html	(revision 148344)
+++ chrome/browser/resources/file_manager/main.html	(working copy)
@@ -68,17 +68,18 @@
 
       <script src="js/combobutton.js"></script>
 
+      <script src="js/path_util.js"></script>
       <script src="js/util.js"></script>
       <script src="js/breadcrumbs_controller.js"></script>
       <script src="js/directory_contents.js"></script>
-      <script src="js/volume_manager.js"></script>
       <script src="js/directory_model.js"></script>
-      <script src="js/file_copy_manager.js"></script>
+      <script src="js/file_copy_manager_wrapper.js"></script>
       <script src="js/file_manager.js"></script>
       <script src="js/file_manager_pyauto.js"></script>
       <script src="js/file_tasks.js"></script>
       <script src="js/file_transfer_controller.js"></script>
       <script src="js/file_type.js"></script>
+      <script src="js/volume_manager.js"></script>
       <script src="js/media/media_util.js"></script>
       <script src="js/metadata/metadata_cache.js"></script>
       <script src="js/default_action_dialog.js"></script>