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

chrome/browser/signin/easy_unlock_service.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/signin/easy_unlock_service.h"
 
 #include "apps/app_lifetime_monitor.h"
 #include "apps/app_lifetime_monitor_factory.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 209 matching lines @@
   void SuspendImminent() override { service_->PrepareForSuspend(); }
 
   void SuspendDone(const base::TimeDelta& sleep_duration) override {
     waking_up_ = true;
     wake_up_time_ = base::Time::Now();
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE,
         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.
   }
 
   void ResetWakingUp() {
     waking_up_ = false;
     service_->UpdateAppState();
   }
 
   EasyUnlockService* service_;
@@ skipping 616 matching lines @@
 
   // TODO(tbarzic): Set check_private_key only if previous sign-in attempt
   // failed.
   EasyUnlockTpmKeyManagerFactory::GetInstance()->Get(profile_)
       ->PrepareTpmKey(true /* check_private_key */,
                       base::Closure());
 #endif  // defined(OS_CHROMEOS)
 
   tpm_key_checked_ = true;
 }