Enable "Hide Extension" option when "Save Link As" on the Mac

content/browser/download/download_item_impl_delegate.h

Index: content/browser/download/download_item_impl_delegate.h
diff --git a/content/browser/download/download_item_impl_delegate.h b/content/browser/download/download_item_impl_delegate.h
index 72e079b89630673cae049b706f29db81480f8fef..ff143bce2cec84ea4ac4072b665b0c68d287ac7b 100644
--- a/content/browser/download/download_item_impl_delegate.h
+++ b/content/browser/download/download_item_impl_delegate.h
@@ -26,8 +26,8 @@ class CONTENT_EXPORT DownloadItemImplDelegate {
       const base::FilePath&,            // Target path
       DownloadItem::TargetDisposition,  // overwrite/uniquify target
       DownloadDangerType,
-      const base::FilePath&             // Intermediate file path
-                              )> DownloadTargetCallback;
+      const base::FilePath&,             // Intermediate file path
+      bool hide_file_extension     )> DownloadTargetCallback;
 
   // The boolean argument indicates whether or not the download was
   // actually opened.