Make the download's response headers available in the DownloadItem

content/browser/download/download_item_impl.cc

Index: content/browser/download/download_item_impl.cc
diff --git a/content/browser/download/download_item_impl.cc b/content/browser/download/download_item_impl.cc
index fb6ff4a01339ddf4acc7ed3bbd155e1603e2a7e6..ec6222340617f7772c857209204c4eb7fe6f37a4 100644
--- a/content/browser/download/download_item_impl.cc
+++ b/content/browser/download/download_item_impl.cc
@@ -217,6 +217,7 @@ DownloadItemImpl::DownloadItemImpl(DownloadItemImplDelegate* delegate,
       transition_type_(info.transition_type ? info.transition_type.value()
                                             : ui::PAGE_TRANSITION_LINK),
       has_user_gesture_(info.has_user_gesture),
+      response_code_(info.response_code),
       content_disposition_(info.content_disposition),
       mime_type_(info.mime_type),
       original_mime_type_(info.original_mime_type),
@@ -605,6 +606,10 @@ std::string DownloadItemImpl::GetSuggestedFilename() const {
   return suggested_filename_;
 }
 
+int DownloadItemImpl::GetResponseCode() const {
+  return response_code_;
+}
+
 std::string DownloadItemImpl::GetContentDisposition() const {
   return content_disposition_;
 }
@@ -1043,6 +1048,7 @@ void DownloadItemImpl::UpdateValidatorsOnResumption(
       url_chain_.end(), chain_iter, new_create_info.url_chain.end());
   etag_ = new_create_info.etag;
   last_modified_time_ = new_create_info.last_modified;
+  response_code_ = new_create_info.response_code;
   content_disposition_ = new_create_info.content_disposition;
   // It is possible that the previous download attempt failed right before the
   // response is received. Need to reset the MIME type.