Show a different banner in chrome://settings for extension-controlled settings.

chrome/browser/ui/webui/options/advanced_options_handler.h

Index: chrome/browser/ui/webui/options/advanced_options_handler.h
diff --git a/chrome/browser/ui/webui/options/advanced_options_handler.h b/chrome/browser/ui/webui/options/advanced_options_handler.h
index ddc3e1088c8a843953c278f869bd277026ddfb8b..9a159563f9e9bc382c78b0617528f1f4cdb56993 100644
--- a/chrome/browser/ui/webui/options/advanced_options_handler.h
+++ b/chrome/browser/ui/webui/options/advanced_options_handler.h
@@ -12,7 +12,6 @@
 #include "chrome/browser/ui/shell_dialogs.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 
-class OptionsManagedBannerHandler;
 class CloudPrintSetupHandler;
 
 // Chrome advanced options page UI handler.
@@ -173,7 +172,6 @@ class AdvancedOptionsHandler
   StringPrefMember auto_open_files_;
   IntegerPrefMember default_font_size_;
   scoped_ptr<PrefSetObserver> proxy_prefs_;
-  scoped_ptr<OptionsManagedBannerHandler> banner_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(AdvancedOptionsHandler);
 };