Improve some naming

chrome/browser/extensions/theme_installed_infobar_delegate.h

Index: chrome/browser/extensions/theme_installed_infobar_delegate.h
diff --git a/chrome/browser/extensions/theme_installed_infobar_delegate.h b/chrome/browser/extensions/theme_installed_infobar_delegate.h
index bcc42b4590f254c57dc89df34777805900be2802..76d019b48857e0baecae0d1746990c18bc0e9914 100644
--- a/chrome/browser/extensions/theme_installed_infobar_delegate.h
+++ b/chrome/browser/extensions/theme_installed_infobar_delegate.h
@@ -31,14 +31,14 @@ class ThemeInstalledInfoBarDelegate : public ConfirmInfoBarDelegate,
   static void Create(const extensions::Extension* new_theme,
                      Profile* profile,
                      const std::string& previous_theme_id,
-                     bool previous_using_native_theme);
+                     bool previous_using_system_theme);
 
  private:
   ThemeInstalledInfoBarDelegate(ExtensionService* extension_service,
                                 ThemeService* theme_service,
                                 const extensions::Extension* new_theme,
                                 const std::string& previous_theme_id,
-                                bool previous_using_native_theme);
+                                bool previous_using_system_theme);
   virtual ~ThemeInstalledInfoBarDelegate();
 
   // ConfirmInfoBarDelegate:
@@ -67,7 +67,7 @@ class ThemeInstalledInfoBarDelegate : public ConfirmInfoBarDelegate,
 
   // Used to undo theme install.
   std::string previous_theme_id_;
-  bool previous_using_native_theme_;
+  bool previous_using_system_theme_;
 
   // Registers and unregisters us for notifications.
   content::NotificationRegistrar registrar_;