Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/notifications/NotificationResourcesLoader.cpp

 // Copyright 2016 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 "modules/notifications/NotificationResourcesLoader.h"
 
 #include "platform/Histogram.h"
 #include "platform/weborigin/KURL.h"
 #include "public/platform/modules/notifications/WebNotificationData.h"
 #include "public/platform/modules/notifications/WebNotificationResources.h"
@@ skipping 69 matching lines @@
     ExecutionContext* executionContext,
     NotificationImageLoader::Type type,
     const KURL& url,
     std::unique_ptr<NotificationImageLoader::ImageCallback> imageCallback) {
   if (url.isNull() || url.isEmpty() || !url.isValid()) {
     didFinishRequest();
     return;
   }
 
   NotificationImageLoader* imageLoader = new NotificationImageLoader(type);
-  m_imageLoaders.append(imageLoader);
+  m_imageLoaders.push_back(imageLoader);
   imageLoader->start(executionContext, url, std::move(imageCallback));
 }
 
 void NotificationResourcesLoader::didLoadImage(const SkBitmap& image) {
   m_image = NotificationImageLoader::scaleDownIfNeeded(
       image, NotificationImageLoader::Type::Image);
   didFinishRequest();
 }
 
 void NotificationResourcesLoader::didLoadIcon(const SkBitmap& image) {
@@ skipping 21 matching lines @@
   DCHECK_GT(m_pendingRequestCount, 0);
   m_pendingRequestCount--;
   if (!m_pendingRequestCount) {
     stop();
     (*m_completionCallback)(this);
     // The |this| pointer may have been deleted now.
   }
 }
 
 }  // namespace blink