WIP - Refactor programmatic downloads

chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc

Index: chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc
diff --git a/chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc b/chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc
index 898c66380559e1f02067885a2c8d90c3a7421dcb..465df1e7c0afd64fe4156ade395be68262f01dad 100644
--- a/chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc
+++ b/chrome/browser/extensions/api/recovery_private/write_from_url_operation.cc
@@ -120,11 +120,12 @@ void WriteFromUrlOperation::DownloadStart() {
   download_manager->DownloadUrl(download_params.Pass());
 }
 
-void WriteFromUrlOperation::OnDownloadStarted(content::DownloadItem* item,
-                                              net::Error error) {
+void WriteFromUrlOperation::OnDownloadStarted(
+    content::DownloadItem* item,
+    content::DownloadInterruptReason interrupt_reason) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (item) {
-    DCHECK_EQ(net::OK, error);
+    DCHECK_EQ(content::DOWNLOAD_INTERRUPT_REASON_NONE, interrupt_reason);
 
     download_ = item;
     download_->AddObserver(this);
@@ -132,10 +133,10 @@ void WriteFromUrlOperation::OnDownloadStarted(content::DownloadItem* item,
     // Run at least once.
     OnDownloadUpdated(download_);
   } else {
-    DCHECK_NE(net::OK, error);
+    DCHECK_NE(content::DOWNLOAD_INTERRUPT_REASON_NONE, interrupt_reason);
     std::string error_message = ErrorUtils::FormatErrorMessage(
         "Download failed: *",
-        net::ErrorToString(error));
+        content::DownloadInterruptReasonToString(interrupt_reason));
     Error(error_message);
   }
 }