[Smart Lock] Add UMA metrics to measure duration of unlock.

chrome/browser/signin/easy_unlock_service.cc

Index: chrome/browser/signin/easy_unlock_service.cc
diff --git a/chrome/browser/signin/easy_unlock_service.cc b/chrome/browser/signin/easy_unlock_service.cc
index 4d3ad0b3e1fcc4156bd54ef4584963c5cfc2553a..f261a3581727b6adbf36062c9f45f6747caa33bf 100644
--- a/chrome/browser/signin/easy_unlock_service.cc
+++ b/chrome/browser/signin/easy_unlock_service.cc
@@ -227,6 +227,7 @@ class EasyUnlockService::PowerMonitor
         base::Bind(&PowerMonitor::ResetWakingUp,
                    weak_ptr_factory_.GetWeakPtr()),
         base::TimeDelta::FromSeconds(5));
+    service_->OnSuspendDone();
     service_->UpdateAppState();
     // Note that |this| may get deleted after |UpdateAppState| is called.
   }