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

chrome/browser/platform_util_win.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/platform_util.h"
 
 #include <commdlg.h>
 #include <dwmapi.h>
 #include <shellapi.h>
 #include <shlobj.h>
@@ skipping 143 matching lines @@
                                                 SW_SHOWNORMAL)) <= 32) {
     // We fail to execute the call. We could display a message to the user.
     // TODO(nsylvain): we should also add a dialog to warn on errors. See
     // bug 1136923.
     return;
   }
 }
 
 }  // namespace
 
-void ShowItemInFolder(Profile* profile, const base::FilePath& full_path) {
+namespace internal {
+
+void PlatformShowItemInFolder(Profile* profile,
+                              const base::FilePath& full_path) {
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
       base::Bind(&ShowItemInFolderOnFileThread, full_path));
 }
 
-namespace internal {
-
 void PlatformOpenVerifiedItem(const base::FilePath& path, OpenItemType type) {
   switch (type) {
     case OPEN_FILE:
       ui::win::OpenFileViaShell(path);
       break;
 
     case OPEN_FOLDER:
       ui::win::OpenFolderViaShell(path);
       break;
   }
 }
 
 }  // namespace internal
 
 void OpenExternal(Profile* profile, const GURL& url) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&OpenExternalOnFileThread, url));
 }
 
 }  // namespace platform_util