Revert "URLRequestJob: change ReadRawData contract"

storage/browser/fileapi/file_system_url_request_job.h

 // Copyright (c) 2012 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 STORAGE_BROWSER_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_
 #define STORAGE_BROWSER_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_
 
 #include <string>
 
 #include "base/files/file.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "net/base/net_errors.h"
 #include "net/http/http_byte_range.h"
 #include "net/url_request/url_request_job.h"
 #include "storage/browser/fileapi/file_system_url.h"
 #include "storage/browser/storage_browser_export.h"
 
 class GURL;
 
 namespace base {
 class FilePath;
 }
@@ skipping 10 matching lines @@
  public:
   FileSystemURLRequestJob(
       net::URLRequest* request,
       net::NetworkDelegate* network_delegate,
       const std::string& storage_domain,
       FileSystemContext* file_system_context);
 
   // URLRequestJob methods:
   void Start() override;
   void Kill() override;
-  int ReadRawData(net::IOBuffer* buf, int buf_size) override;
+  bool ReadRawData(net::IOBuffer* buf, int buf_size, int* bytes_read) override;
   bool IsRedirectResponse(GURL* location, int* http_status_code) override;
   void SetExtraRequestHeaders(const net::HttpRequestHeaders& headers) override;
   void GetResponseInfo(net::HttpResponseInfo* info) override;
   int GetResponseCode() const override;
 
   // FilterContext methods (via URLRequestJob):
   bool GetMimeType(std::string* mime_type) const override;
 
  private:
   class CallbackDispatcher;
 
   ~FileSystemURLRequestJob() override;
 
   void StartAsync();
   void DidAttemptAutoMount(base::File::Error result);
   void DidGetMetadata(base::File::Error error_code,
                       const base::File::Info& file_info);
   void DidRead(int result);
+  void NotifyFailed(int rv);
 
   const std::string storage_domain_;
   FileSystemContext* file_system_context_;
   scoped_ptr<storage::FileStreamReader> reader_;
   FileSystemURL url_;
   bool is_directory_;
   scoped_ptr<net::HttpResponseInfo> response_info_;
   int64 remaining_bytes_;
-  net::Error range_parse_result_;
   net::HttpByteRange byte_range_;
   base::WeakPtrFactory<FileSystemURLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FileSystemURLRequestJob);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_