[Refactor] to rename and re-layer the file_util stack layers.

content/browser/file_system/file_system_dispatcher_host.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 "content/browser/file_system/file_system_dispatcher_host.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
@@ skipping 273 matching lines @@
     const GURL& path, FilePath* platform_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DCHECK(platform_path);
   *platform_path = FilePath();
   base::PlatformFileInfo info;
   GURL origin_url;
   fileapi::FileSystemType type;
   FilePath virtual_path;
   if (!CrackFileSystemURL(path, &origin_url, &type, &virtual_path))
     return;
-  FileSystemFileUtil* file_util =
-      context_->path_manager()->GetFileSystemFileUtil(type);
+  FileSystemFileUtil* file_util = context_->path_manager()->GetFileUtil(type);
   if (!file_util)
     return;
   FileSystemOperationContext operation_context(context_, file_util);
   operation_context.set_src_origin_url(origin_url);
   operation_context.set_src_type(type);
   file_util->GetFileInfo(&operation_context, virtual_path,
                          &info, platform_path);
 }
 
 FileSystemOperation* FileSystemDispatcherHost::GetNewOperation(
     int request_id) {
   BrowserFileSystemCallbackDispatcher* dispatcher =
       new BrowserFileSystemCallbackDispatcher(this, request_id);
   FileSystemOperation* operation = new FileSystemOperation(
       dispatcher,
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
       context_,
       NULL);
   operations_.AddWithID(operation, request_id);
   return operation;
 }
 
 void FileSystemDispatcherHost::UnregisterOperation(int request_id) {
   DCHECK(operations_.Lookup(request_id));
   operations_.Remove(request_id);
 }