[Extensions UI] Use developerPrivate API for profile configuration

chrome/browser/ui/webui/extensions/extension_settings_handler.h

Index: chrome/browser/ui/webui/extensions/extension_settings_handler.h
diff --git a/chrome/browser/ui/webui/extensions/extension_settings_handler.h b/chrome/browser/ui/webui/extensions/extension_settings_handler.h
index f061ff9fef3ee7e9faeccc53c0af87533a009d56..5f35ab13ba83ec1ff062fa85410464275de44db9 100644
--- a/chrome/browser/ui/webui/extensions/extension_settings_handler.h
+++ b/chrome/browser/ui/webui/extensions/extension_settings_handler.h
@@ -84,12 +84,6 @@ class ExtensionSettingsHandler
   // Helper method that reloads all unpacked extensions.
   void ReloadUnpackedExtensions();
 
-  // Callback for "requestExtensionsData" message.
-  void HandleRequestExtensionsData(const base::ListValue* args);
-
-  // Callback for "toggleDeveloperMode" message.
-  void HandleToggleDeveloperMode(const base::ListValue* args);
-
   // Callback for "launch" message.
   void HandleLaunchMessage(const base::ListValue* args);
 
@@ -105,9 +99,6 @@ class ExtensionSettingsHandler
   // Callback for "autoupdate" message.
   void HandleAutoUpdateMessage(const base::ListValue* args);
 
-  // Callback for the "dismissADTPromo" message.
-  void HandleDismissADTPromoMessage(const base::ListValue* args);
-
   // Callback for the "showPath" message.
   void HandleShowPath(const base::ListValue* args);