Reduce header dependencies in net/

net/url_request/url_request_file_job.cc

 // Copyright (c) 2006-2009 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.
 
 // For loading files, we make use of overlapped i/o to ensure that reading from
 // the filesystem (e.g., a network filesystem) does not block the calling
 // thread.  An alternative approach would be to use a background thread or pool
 // of threads, but it seems better to leverage the operating system's ability
 // to do background file reads for us.
 //
 // Since overlapped reads require a 'static' buffer for the duration of the
 // asynchronous read, the URLRequestFileJob keeps a buffer as a member var.  In
 // URLRequestFileJob::Read, data is simply copied from the object's buffer into
 // the given buffer.  If there is no data to copy, the URLRequestFileJob
 // attempts to read more from the file to fill its buffer.  If reading from the
 // file does not complete synchronously, then the URLRequestFileJob waits for a
 // signal from the OS that the overlapped read has completed.  It does so by
 // leveraging the MessageLoop::WatchObject API.
 
 #include "net/url_request/url_request_file_job.h"
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/platform_file.h"
 #include "base/string_util.h"
 #include "base/worker_pool.h"
 #include "googleurl/src/gurl.h"
+#include "net/base/io_buffer.h"
 #include "net/base/load_flags.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/http/http_util.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_file_dir_job.h"
 
 #if defined(OS_WIN)
 class URLRequestFileJob::AsyncResolver :
@@ skipping 267 matching lines @@
   if (!resolved)
     return false;
 
   *location = net::FilePathToFileURL(FilePath(new_path));
   *http_status_code = 301;
   return true;
 #else
   return false;
 #endif
 }