gtk: Rename GtkThemeService to ThemeServiceGtk.

chrome/browser/ui/gtk/overflow_button.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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/ui/gtk/overflow_button.h"
 
 #include <gtk/gtk.h>
 
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/gtk/gtk_theme_service.h"
+#include "chrome/browser/ui/gtk/theme_service_gtk.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/public/browser/notification_source.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
 OverflowButton::OverflowButton(Profile* profile) : profile_(profile) {
-  widget_.Own(GtkThemeService::GetFrom(profile)->BuildChromeButton());
+  widget_.Own(ThemeServiceGtk::GetFrom(profile)->BuildChromeButton());
   gtk_widget_set_no_show_all(widget_.get(), TRUE);
 
-  GtkThemeService* theme_service = GtkThemeService::GetFrom(profile);
+  ThemeServiceGtk* theme_service = ThemeServiceGtk::GetFrom(profile);
   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
                  content::Source<ThemeService>(theme_service));
   theme_service->InitThemesFor(this);
 }
 
 OverflowButton::~OverflowButton() {
   widget_.Destroy();
 }
 
 void OverflowButton::Observe(int type,
                              const content::NotificationSource& source,
                              const content::NotificationDetails& details) {
   GtkWidget* former_child = gtk_bin_get_child(GTK_BIN(widget()));
   if (former_child)
     gtk_widget_destroy(former_child);
 
   GtkWidget* new_child =
-      GtkThemeService::GetFrom(profile_)->UsingNativeTheme() ?
+      ThemeServiceGtk::GetFrom(profile_)->UsingNativeTheme() ?
       gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE) :
       gtk_image_new_from_pixbuf(ui::ResourceBundle::GetSharedInstance().
           GetRTLEnabledPixbufNamed(IDR_BOOKMARK_BAR_CHEVRONS));
 
   gtk_container_add(GTK_CONTAINER(widget()), new_child);
   gtk_widget_show(new_child);
 }