GTK Themes: Tint throbbers like we tint all other buttons in the interface.

chrome/browser/gtk/tabs/tab_gtk.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/gtk/tabs/tab_gtk.h"
 
 #include "app/gfx/path.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "chrome/browser/gtk/gtk_dnd_util.h"
@@ skipping 90 matching lines @@
   // is canceled.
   TabGtk* tab_;
 
   DISALLOW_COPY_AND_ASSIGN(ContextMenuController);
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 // TabGtk, public:
 
 TabGtk::TabGtk(TabDelegate* delegate)
-    : TabRendererGtk(),
+    : TabRendererGtk(delegate->GetThemeProvider()),
       delegate_(delegate),
       closing_(false),
       dragging_(false) {
   event_box_ = gtk_event_box_new();
   g_object_ref(event_box_);
   gtk_event_box_set_visible_window(GTK_EVENT_BOX(event_box_), FALSE);
   gtk_drag_source_set(event_box_, GDK_BUTTON1_MASK,
                       NULL, 0, GDK_ACTION_MOVE);
   GtkDndUtil::SetSourceTargetListFromCodeMask(event_box_,
                                               GtkDndUtil::X_CHROME_TAB);
@@ skipping 173 matching lines @@
   if (!menu_controller_.get())
     menu_controller_.reset(new ContextMenuController(this));
 
   menu_controller_->RunMenu();
 }
 
 void TabGtk::ContextMenuClosed() {
   delegate()->StopAllHighlighting();
   menu_controller_.reset();
 }