revert 22226 as it caused some ui test crashes

chrome/browser/gtk/download_shelf_gtk.cc

 // Copyright (c) 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/gtk/download_shelf_gtk.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/gfx/gtk_util.h"
 #include "chrome/browser/browser.h"
@@ skipping 79 matching lines @@
   // Create and pack the close button.
   close_button_.reset(CustomDrawButton::CloseButton(theme_provider_));
   gtk_util::CenterWidgetInHBox(hbox_.get(), close_button_->widget(), true, 0);
   g_signal_connect(close_button_->widget(), "clicked",
                    G_CALLBACK(OnButtonClick), this);
 
   // Create the "Show all downloads..." link and connect to the click event.
   std::string link_text =
       l10n_util::GetStringUTF8(IDS_SHOW_ALL_DOWNLOADS);
   GtkWidget* link_button = gtk_chrome_link_button_new(link_text.c_str());
-  gtk_chrome_link_button_set_use_gtk_theme(
-      GTK_CHROME_LINK_BUTTON(link_button), FALSE);
   g_signal_connect(link_button, "clicked",
                    G_CALLBACK(OnButtonClick), this);
   // Until we switch to vector graphics, force the font size.
   // 13.4px == 10pt @ 96dpi
   gtk_util::ForceFontSizePixels(GTK_CHROME_LINK_BUTTON(link_button)->label,
                                 13.4);
 
   // Make the download arrow icon.
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   GdkPixbuf* download_pixbuf = rb.GetPixbufNamed(IDR_DOWNLOADS_FAVICON);
@@ skipping 99 matching lines @@
 // static
 void DownloadShelfGtk::OnButtonClick(GtkWidget* button,
                                      DownloadShelfGtk* shelf) {
   if (button == shelf->close_button_->widget()) {
     shelf->Close();
   } else {
     // The link button was clicked.
     shelf->browser_->ShowDownloadsTab();
   }
 }