MD Settings: Fix Appearance home page URL crash

chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc

Index: chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc
diff --git a/chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc b/chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc
index c0b870290085400195a98d217f7b29f6cfaa0bae..02e14062d8206ac75c093d31f53ce110101ad625 100644
--- a/chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc
+++ b/chrome/browser/ui/webui/settings/settings_startup_pages_handler.cc
@@ -44,9 +44,6 @@ void StartupPagesHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback("setStartupPagesToCurrentPages",
       base::Bind(&StartupPagesHandler::HandleSetStartupPagesToCurrentPages,
                  base::Unretained(this)));
-  web_ui()->RegisterMessageCallback("validateStartupPage",
-      base::Bind(&StartupPagesHandler::HandleValidateStartupPage,
-                 base::Unretained(this)));
 }
 
 void StartupPagesHandler::OnJavascriptAllowed() {
@@ -182,20 +179,6 @@ void StartupPagesHandler::HandleSetStartupPagesToCurrentPages(
   SaveStartupPagesPref();
 }
 
-void StartupPagesHandler::HandleValidateStartupPage(
-    const base::ListValue* args) {
-  CHECK_EQ(args->GetSize(), 2U);
-
-  const base::Value* callback_id;
-  CHECK(args->Get(0, &callback_id));
-
-  std::string url_string;
-  CHECK(args->GetString(1, &url_string));
-
-  bool valid = settings_utils::FixupAndValidateStartupPage(url_string, nullptr);
-  ResolveJavascriptCallback(*callback_id, base::Value(valid));
-}
-
 void StartupPagesHandler::SaveStartupPagesPref() {
   PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs();