Download shelf autohides on showing in shell, just same as regular open

chrome/browser/download/chrome_download_manager_delegate.cc

Index: chrome/browser/download/chrome_download_manager_delegate.cc
diff --git a/chrome/browser/download/chrome_download_manager_delegate.cc b/chrome/browser/download/chrome_download_manager_delegate.cc
index bce81648e9dd7d2ff6e35be16cde7e780bacbfed..388ec3dd5b699d36a43f05e1405c6d361c14ce69 100644
--- a/chrome/browser/download/chrome_download_manager_delegate.cc
+++ b/chrome/browser/download/chrome_download_manager_delegate.cc
@@ -480,6 +480,7 @@ void ChromeDownloadManagerDelegate::OpenDownload(DownloadItem* download) {
 
   if (!DownloadItemModel(download).ShouldPreferOpeningInBrowser()) {
     RecordDownloadOpenMethod(DOWNLOAD_OPEN_METHOD_DEFAULT_PLATFORM);
+    DownloadItemModel(download).SetOpenedOrShown(true);
     OpenDownloadUsingPlatformHandler(download);
     return;
   }
@@ -505,6 +506,7 @@ void ChromeDownloadManagerDelegate::OpenDownload(DownloadItem* download) {
     browser->OpenURL(params);
 
   RecordDownloadOpenMethod(DOWNLOAD_OPEN_METHOD_DEFAULT_BROWSER);
+  DownloadItemModel(download).SetOpenedOrShown(true);
 #else
   // ShouldPreferOpeningInBrowser() should never be true on Android.
   NOTREACHED();
@@ -518,6 +520,7 @@ void ChromeDownloadManagerDelegate::ShowDownloadInShell(
   base::FilePath platform_path(
       GetPlatformDownloadPath(profile_, download, PLATFORM_CURRENT_PATH));
   DCHECK(!platform_path.empty());
+  DownloadItemModel(download).SetOpenedOrShown(true);
   platform_util::ShowItemInFolder(profile_, platform_path);
 }