[Extensions] Make chrome://extensions use developerPrivate for error calls

chrome/browser/ui/webui/extensions/extensions_ui.cc

Index: chrome/browser/ui/webui/extensions/extensions_ui.cc
diff --git a/chrome/browser/ui/webui/extensions/extensions_ui.cc b/chrome/browser/ui/webui/extensions/extensions_ui.cc
index 88252e0822fae866ca46b262fd7ca07f6e4842c5..49d921bc7379479a0951562ede1232b5622a6272 100644
--- a/chrome/browser/ui/webui/extensions/extensions_ui.cc
+++ b/chrome/browser/ui/webui/extensions/extensions_ui.cc
@@ -6,7 +6,6 @@
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/extensions/command_handler.h"
-#include "chrome/browser/ui/webui/extensions/extension_error_handler.h"
 #include "chrome/browser/ui/webui/extensions/extension_loader_handler.h"
 #include "chrome/browser/ui/webui/extensions/extension_settings_handler.h"
 #include "chrome/browser/ui/webui/extensions/install_extension_handler.h"
@@ -54,11 +53,6 @@ ExtensionsUI::ExtensionsUI(content::WebUI* web_ui) : WebUIController(web_ui) {
   commands_handler->GetLocalizedValues(source);
   web_ui->AddMessageHandler(commands_handler);
 
-  ExtensionErrorHandler* extension_error_handler =
-      new ExtensionErrorHandler(profile);
-  extension_error_handler->GetLocalizedValues(source);
-  web_ui->AddMessageHandler(extension_error_handler);
-
   ExtensionLoaderHandler* extension_loader_handler =
       new ExtensionLoaderHandler(profile);
   extension_loader_handler->GetLocalizedValues(source);