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

chrome/browser/ui/cocoa/download/download_item_controller.mm

Index: chrome/browser/ui/cocoa/download/download_item_controller.mm
diff --git a/chrome/browser/ui/cocoa/download/download_item_controller.mm b/chrome/browser/ui/cocoa/download/download_item_controller.mm
index 430ecbc3fd7b1a4b0b5f3c85bdb6fa187f9b25df..0c326d76560f2ff452f055a364026d61c8d5207a 100644
--- a/chrome/browser/ui/cocoa/download/download_item_controller.mm
+++ b/chrome/browser/ui/cocoa/download/download_item_controller.mm
@@ -239,6 +239,10 @@ class DownloadShelfContextMenuMac : public DownloadShelfContextMenu {
   [shelf_ downloadWasOpened:self];
 }
 
+- (void)downloadWasShown {
+  [shelf_ downloadWasShown:self];
+}
+
 - (IBAction)handleButtonClick:(id)sender {
   NSEvent* event = [NSApp currentEvent];
   DownloadItem* download = [self download];
@@ -261,6 +265,10 @@ class DownloadShelfContextMenuMac : public DownloadShelfContextMenu {
   return bridge_->download_model()->download();
 }
 
+- (DownloadItemModel*)downloadItemModel{
+  return bridge_->download_model();

[asanka, 2014/06/12 21:08:47]

This method shouldn't be necessary. If you have a DownloadItem*, you can always
create a DownloadItemModel using it.

+}
+
 - (ui::MenuModel*)contextMenuModel {
   return menuBridge_->GetMenuModel();
 }