Introduce EasyUnlockService class for signin profile

chrome/browser/ui/webui/options/easy_unlock_handler.cc

Index: chrome/browser/ui/webui/options/easy_unlock_handler.cc
diff --git a/chrome/browser/ui/webui/options/easy_unlock_handler.cc b/chrome/browser/ui/webui/options/easy_unlock_handler.cc
index 836aaf39b8badc251f9558f4c52286a6c1abb063..ccde01bf5315f57652b7318a854c8c489a14d11c 100644
--- a/chrome/browser/ui/webui/options/easy_unlock_handler.cc
+++ b/chrome/browser/ui/webui/options/easy_unlock_handler.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/ui/webui/options/easy_unlock_handler.h"
 
+#include <string>
+
 #include "base/bind.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
@@ -67,7 +69,7 @@ void EasyUnlockHandler::OnTurnOffOperationStatusChanged() {
 void EasyUnlockHandler::SendTurnOffOperationStatus() {
   EasyUnlockService::TurnOffFlowStatus status =
       EasyUnlockService::Get(Profile::FromWebUI(web_ui()))
-          ->turn_off_flow_status();
+          ->GetTurnOffFlowStatus();
 
   // Translate status into JS UI state string. Note the translated string
   // should match UIState defined in easy_unlock_turn_off_overlay.js.