MD Settings: Convert C++ handlers to be JavaScript-lifecycle aware.

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

Index: chrome/browser/ui/webui/settings/settings_page_ui_handler.cc
diff --git a/chrome/browser/ui/webui/settings/settings_page_ui_handler.cc b/chrome/browser/ui/webui/settings/settings_page_ui_handler.cc
index 93326fa23f5a79a271fecb5cc02159c72d733298..abe3557ffb78bd28ddbae9e36407852abb78f347 100644
--- a/chrome/browser/ui/webui/settings/settings_page_ui_handler.cc
+++ b/chrome/browser/ui/webui/settings/settings_page_ui_handler.cc
@@ -16,18 +16,16 @@ void SettingsPageUIHandler::ResolveJavascriptCallback(
     const base::Value& callback_id,
     const base::Value& response) {
   // cr.webUIResponse is a global JS function exposed from cr.js.
-  web_ui()->CallJavascriptFunction(
-      "cr.webUIResponse", callback_id,
-      base::FundamentalValue(true), response);
+  CallJavascriptFunction("cr.webUIResponse", callback_id,
+                         base::FundamentalValue(true), response);
 }
 
 void SettingsPageUIHandler::RejectJavascriptCallback(
     const base::Value& callback_id,
     const base::Value& response) {
   // cr.webUIResponse is a global JS function exposed from cr.js.
-  web_ui()->CallJavascriptFunction(
-      "cr.webUIResponse", callback_id,
-      base::FundamentalValue(false), response);
+  CallJavascriptFunction("cr.webUIResponse", callback_id,
+                         base::FundamentalValue(false), response);
 }
 
 }  // namespace settings