Remove retrial of reading from a cached file.

chrome/browser/chromeos/drive/drive_url_request_job.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_URL_REQUEST_JOB_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_URL_REQUEST_JOB_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 77 matching lines @@
   // Helper callback for GetEntryInfoByResourceId invoked by Start().
   void OnGetEntryInfoByResourceId(const std::string& resource_id,
                                   DriveFileError error,
                                   const base::FilePath& drive_file_path,
                                   scoped_ptr<DriveEntryProto> entry_proto);
 
   // Helper methods for ReadRawData to open file and read from its corresponding
   // stream in a streaming fashion.
   bool ContinueReadFromFile(int* bytes_read);
   void ReadFromFile();
-  void ReadFileStream(int bytes_to_read);
+  void ReadFileStream();
 
   // Helper callback for handling async responses from FileStream::Open().
-  void OnFileOpen(int bytes_to_read, int open_result);
+  void OnFileOpen(int open_result);
 
     // Helper callback for handling async responses from FileStream::Read().
   void OnReadFileStream(int bytes_read);
 
   // Helper methods to handle |reamining_bytes_| and |read_buf_|.
   int BytesReadCompleted();
   void RecordBytesRead(int bytes_read);
 
   // Helper methods to formulate and notify about response status, info and
   // headers.
   void NotifySuccess();
   void NotifyFailure(int);
   void HeadersCompleted(int status_code, const std::string& status_txt);
 
   // Helper method to close |stream_|.
   void CloseFileStream();
 
   DriveFileSystemGetter file_system_getter_;
 
   bool error_;  // True if we've encountered an error.
   bool headers_set_;  // True if headers have been set.
 
   base::FilePath local_file_path_;
   base::FilePath drive_file_path_;
   std::string mime_type_;
   int64 initial_file_size_;
   int64 remaining_bytes_;
   scoped_ptr<net::FileStream> stream_;
+  scoped_ptr<net::HttpResponseInfo> response_info_;
+  bool streaming_download_;
   scoped_refptr<net::IOBuffer> read_buf_;
   base::StringPiece read_buf_remaining_;
-  scoped_ptr<net::HttpResponseInfo> response_info_;
-  bool streaming_download_;
   std::string download_buf_;
   base::StringPiece download_buf_remaining_;
 
   // This should remain the last member so it'll be destroyed first and
   // invalidate its weak pointers before other members are destroyed.
   base::WeakPtrFactory<DriveURLRequestJob> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(DriveURLRequestJob);
 };
 
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_URL_REQUEST_JOB_H_