Don't show "show in foloder" in chrome os.

chrome/browser/dom_ui/downloads_ui.cc

 // Copyright (c) 2006-2009 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/dom_ui/downloads_ui.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/singleton.h"
 #include "base/string_piece.h"
 #include "base/thread.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/defaults.h"
 #include "chrome/browser/dom_ui/chrome_url_data_manager.h"
 #include "chrome/browser/dom_ui/downloads_dom_handler.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/profile.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/url_constants.h"
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 
@@ skipping 54 matching lines @@
   localized_strings.SetString(L"danger_desc",
       l10n_util::GetStringF(IDS_PROMPT_DANGEROUS_DOWNLOAD, L"%s"));
   localized_strings.SetString(L"danger_save",
       l10n_util::GetString(IDS_SAVE_DOWNLOAD));
   localized_strings.SetString(L"danger_discard",
       l10n_util::GetString(IDS_DISCARD_DOWNLOAD));
 
   // Controls.
   localized_strings.SetString(L"control_pause",
       l10n_util::GetString(IDS_DOWNLOAD_LINK_PAUSE));
-  localized_strings.SetString(L"control_showinfolder",
-      l10n_util::GetString(IDS_DOWNLOAD_LINK_SHOW));
+  if (browser_defaults::kDownloadPageHasShowInFolder) {
+    localized_strings.SetString(L"control_showinfolder",
+        l10n_util::GetString(IDS_DOWNLOAD_LINK_SHOW));
+  }
   localized_strings.SetString(L"control_cancel",
       l10n_util::GetString(IDS_DOWNLOAD_LINK_CANCEL));
   localized_strings.SetString(L"control_resume",
       l10n_util::GetString(IDS_DOWNLOAD_LINK_RESUME));
   localized_strings.SetString(L"control_removefromlist",
       l10n_util::GetString(IDS_DOWNLOAD_LINK_REMOVE));
 
   SetFontAndTextDirection(&localized_strings);
 
   static const base::StringPiece downloads_html(
@@ skipping 34 matching lines @@
       NewRunnableMethod(Singleton<ChromeURLDataManager>::get(),
           &ChromeURLDataManager::AddDataSource,
           make_scoped_refptr(html_source)));
 }
 
 // static
 RefCountedMemory* DownloadsUI::GetFaviconResourceBytes() {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytes(IDR_DOWNLOADS_FAVICON);
 }