Improve some naming

chrome/browser/themes/theme_service_browsertest.cc

 // Copyright (c) 2013 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/themes/theme_service.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/pref_names.h"
 
 namespace {
 
 // The toolbar color specified in the theme.
 const SkColor kThemeToolbarColor = 0xFFCFDDC0;
 
 bool UsingCustomTheme(const ThemeService& theme_service) {
-  return !theme_service.UsingNativeTheme() &&
+  return !theme_service.UsingSystemTheme() &&
          !theme_service.UsingDefaultTheme();
 }
 
 class ThemeServiceBrowserTest : public ExtensionBrowserTest {
  public:
   ThemeServiceBrowserTest() {
   }
   virtual ~ThemeServiceBrowserTest() {
   }
 
@@ skipping 40 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(ThemeServiceBrowserTest, ThemeDataPackInvalid) {
   ThemeService* theme_service = ThemeServiceFactory::GetForProfile(
       browser()->profile());
   EXPECT_TRUE(UsingCustomTheme(*theme_service));
   EXPECT_EQ(kThemeToolbarColor, theme_service->GetColor(
       ThemeProperties::COLOR_TOOLBAR));
 }
 
 }  // namespace