Enable history and downloads by default, port NewTabUI from DOMUIHost to DOMU...

chrome/browser/views/download_shelf_view.cc

 // Copyright (c) 2006-2008 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/views/download_shelf_view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "chrome/browser/browser.h"
@@ skipping 247 matching lines @@
     }
   }
 }
 
 // Open the download page.
 void DownloadShelfView::LinkActivated(views::Link* source, int event_flags) {
   int index;
   NavigationController* controller = tab_contents_->controller();
   Browser* browser = Browser::GetBrowserForController(controller, &index);
   DCHECK(browser);
-  browser->ShowNativeUITab(DownloadTabUI::GetURL());
+  browser->ShowDownloadsTab();
 }
 
 void DownloadShelfView::ButtonPressed(views::BaseButton* button) {
   shelf_animation_->Hide();
 }
 
 bool DownloadShelfView::IsShowing() const {
   return shelf_animation_->IsShowing();
 }