MD Settings: Add helper method for responding to cr.sendWithPromise.

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

Index: chrome/browser/ui/webui/settings/appearance_handler.cc
diff --git a/chrome/browser/ui/webui/settings/appearance_handler.cc b/chrome/browser/ui/webui/settings/appearance_handler.cc
index 01ead427b727565e29cd6d59b3d5e53fd5230bdf..726d97aff5c34d41e4b5aa976017a4d60184718d 100644
--- a/chrome/browser/ui/webui/settings/appearance_handler.cc
+++ b/chrome/browser/ui/webui/settings/appearance_handler.cc
@@ -71,15 +71,12 @@ base::FundamentalValue AppearanceHandler::QueryResetThemeEnabledState() {
 }
 
 void AppearanceHandler::GetResetThemeEnabled(const base::ListValue* args) {
-  CHECK_EQ(2U, args->GetSize());
-
-  std::string callbackFn;
-  CHECK(args->GetString(0, &callbackFn));
+  CHECK_EQ(1U, args->GetSize());
   const base::Value* callbackId;

[Dan Beam, 2016/01/27 00:23:57]

callback_id

[dpapad, 2016/01/27 00:45:23]

Done.

-  CHECK(args->Get(1, &callbackId));
+  CHECK(args->Get(0, &callbackId));
 
   base::FundamentalValue enabled(QueryResetThemeEnabledState());
-  web_ui()->CallJavascriptFunction(callbackFn, *callbackId, enabled);
+  CallJavascriptCallback(web_ui(), *callbackId, enabled);
 }
 
 }  // namespace settings