Use If-Range instead of If-Match/If-Unmodified-Since for partial requests.

chrome/browser/download/download_item_model.cc

 // 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.
 
 #include "chrome/browser/download/download_item_model.h"
 
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/rtl.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string16.h"
@@ skipping 156 matching lines @@
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_CERT_PROBLEM:
       string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS_SERVER_CERT_PROBLEM;
       break;
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_FORBIDDEN:
       string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS_FORBIDDEN;
       break;
     case content::DOWNLOAD_INTERRUPT_REASON_NONE:
       NOTREACHED();
       // fallthrough
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_NO_RANGE:
-    case content::DOWNLOAD_INTERRUPT_REASON_SERVER_PRECONDITION:
     case content::DOWNLOAD_INTERRUPT_REASON_FILE_FAILED:
       string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS;
   }
 
   return l10n_util::GetStringUTF16(string_id);
 }
 
 base::string16 InterruptReasonMessage(int reason) {
   int string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS;
   base::string16 status_text;
@@ skipping 60 matching lines @@
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_CERT_PROBLEM:
       string_id = IDS_DOWNLOAD_INTERRUPTED_DESCRIPTION_SERVER_CERT_PROBLEM;
       break;
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_FORBIDDEN:
       string_id = IDS_DOWNLOAD_INTERRUPTED_DESCRIPTION_FORBIDDEN;
       break;
     case content::DOWNLOAD_INTERRUPT_REASON_NONE:
       NOTREACHED();
       // fallthrough
     case content::DOWNLOAD_INTERRUPT_REASON_SERVER_NO_RANGE:
-    case content::DOWNLOAD_INTERRUPT_REASON_SERVER_PRECONDITION:
     case content::DOWNLOAD_INTERRUPT_REASON_FILE_FAILED:
       string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS;
   }
 
   status_text = l10n_util::GetStringUTF16(string_id);
 
   return status_text;
 }
 
 } // namespace
@@ skipping 444 matching lines @@
   if (!download_service)
     return;
 
   ChromeDownloadManagerDelegate* delegate =
       download_service->GetDownloadManagerDelegate();
   if (!delegate)
     return;
   delegate->OpenDownloadUsingPlatformHandler(download_);
   RecordDownloadOpenMethod(DOWNLOAD_OPEN_METHOD_USER_PLATFORM);
 }