Cleanup referrer_charset

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 bea70fe8164805998a3a6bd944d75eabfbdf84c2..5017ffa5111f3865909c3c16e43ce63d3ed9db6d 100644
--- a/content/browser/download/download_item_impl.cc
+++ b/content/browser/download/download_item_impl.cc
@@ -205,7 +205,6 @@ DownloadItemImpl::DownloadItemImpl(
       content_disposition_(info.content_disposition),
       mime_type_(info.mime_type),
       original_mime_type_(info.original_mime_type),
-      referrer_charset_(info.referrer_charset),
       remote_address_(info.remote_address),
       total_bytes_(info.total_bytes),
       received_bytes_(0),
@@ -554,10 +553,6 @@ std::string DownloadItemImpl::GetOriginalMimeType() const {
   return original_mime_type_;
 }
 
-std::string DownloadItemImpl::GetReferrerCharset() const {
-  return referrer_charset_;
-}
-
 std::string DownloadItemImpl::GetRemoteAddress() const {
   return remote_address_;
 }