Reland: URLRequestJob: change ReadRawData contract

net/url_request/url_request_status.h

 // 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.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_STATUS_H_
 #define NET_URL_REQUEST_URL_REQUEST_STATUS_H_
 
+#include "net/base/net_errors.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 // Represents the result of a URL request. It encodes errors and various
 // types of success.
 class NET_EXPORT URLRequestStatus {
  public:
   enum Status {
     // Request succeeded, |error_| will be 0.
@@ skipping 16 matching lines @@
   // Creates a URLRequestStatus with specified status and error parameters. New
   // consumers should use URLRequestStatus::FromError instead.
   URLRequestStatus(Status status, int error);
 
   // Creates a URLRequestStatus, initializing the status from |error|. OK maps
   // to SUCCESS, ERR_IO_PENDING maps to IO_PENDING, ERR_ABORTED maps to CANCELED
   // and all others map to FAILED. Other combinations of status and error are
   // deprecated. See https://crbug.com/490311.
   static URLRequestStatus FromError(int error);
 
+  // Returns a Error corresponding to |status_|.
+  //   OK for OK
+  //   ERR_IO_PENDING for IO_PENDING
+  //   ERR_ABORTED for CANCELLED
+  //   Error for FAILED
+  Error ToNetError() const;
+
   Status status() const { return status_; }
   int error() const { return error_; }
 
   // Returns true if the status is success, which makes some calling code more
   // convenient because this is the most common test.
   bool is_success() const {
     return status_ == SUCCESS || status_ == IO_PENDING;
   }
 
   // Returns true if the request is waiting for IO.
   bool is_io_pending() const {
     return status_ == IO_PENDING;
   }
 
  private:
   // Application level status.
   Status status_;
 
   // Error code from the network layer if an error was encountered.
   int error_;
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_STATUS_H_