[Download Notification] Use NotificationUIManager instead of MessageCenter

chrome/browser/notifications/notification_test_util.cc

 // Copyright (c) 2012 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/notifications/notification_test_util.h"
 
 MockNotificationDelegate::MockNotificationDelegate(const std::string& id)
     : id_(id) {}
 
 MockNotificationDelegate::~MockNotificationDelegate() {}
@@ skipping 35 matching lines @@
 }
 
 bool StubNotificationUIManager::Update(const Notification& notification,
                                        Profile* profile) {
   return false;
 }
 
 const Notification* StubNotificationUIManager::FindById(
     const std::string& delegate_id,
     ProfileID profile_id) const {
+  auto iter = notifications_.begin();
+  for (; iter != notifications_.end(); ++iter) {
+    if (iter->first.delegate_id() != delegate_id || iter->second != profile_id)
+      continue;
+
+    return &iter->first;
+  }
+
   return nullptr;
 }
 
 bool StubNotificationUIManager::CancelById(const std::string& delegate_id,
                                            ProfileID profile_id) {
   auto iter = notifications_.begin();
   for (; iter != notifications_.end(); ++iter) {
     if (iter->first.delegate_id() != delegate_id ||
         iter->second != profile_id)
       continue;
@@ skipping 27 matching lines @@
 bool StubNotificationUIManager::CancelAllByProfile(ProfileID profile_id) {
   NOTIMPLEMENTED();
   return false;
 }
 
 void StubNotificationUIManager::CancelAll() {
   for (const auto& pair : notifications_)
     pair.first.delegate()->Close(false /* by_user */);
   notifications_.clear();
 }