Implement WTF::WeakPtr in terms of base::WeakPtr

third_party/WebKit/Source/core/loader/ImageLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 246 matching lines @@
 void ImageLoader::doUpdateFromElement(BypassMainWorldBehavior bypassBehavior, UpdateFromElementBehavior updateBehavior, const KURL& url, ReferrerPolicy referrerPolicy)
 {
     // FIXME: According to
     // http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content.html#the-img-element:the-img-element-55
     // When "update image" is called due to environment changes and the load fails, onerror should not be called.
     // That is currently not the case.
     //
     // We don't need to call clearLoader here: Either we were called from the
     // task, or our caller updateFromElement cleared the task's loader (and set
     // m_pendingTask to null).
-    m_pendingTask.clear();
+    m_pendingTask.reset();
     // Make sure to only decrement the count when we exit this function
     std::unique_ptr<IncrementLoadEventDelayCount> loadDelayCounter;
     loadDelayCounter.swap(m_loadDelayCounter);
 
     Document& document = m_element->document();
     if (!document.isActive())
         return;
 
     AtomicString imageSourceURL = m_element->imageSourceURL();
     ImageResource* newImage = nullptr;
@@ skipping 90 matching lines @@
     if (m_loadingImageDocument && updateBehavior != UpdateForcedReload) {
         setImage(ImageResource::create(imageSourceToKURL(m_element->imageSourceURL())));
         m_image->setStatus(Resource::Pending);
         return;
     }
 
     // If we have a pending task, we have to clear it -- either we're
     // now loading immediately, or we need to reset the task's state.
     if (m_pendingTask) {
         m_pendingTask->clearLoader();
-        m_pendingTask.clear();
+        m_pendingTask.reset();
     }
 
     KURL url = imageSourceToKURL(imageSourceURL);
     if (shouldLoadImmediately(url)) {
         doUpdateFromElement(DoNotBypassMainWorldCSP, updateBehavior, url, referrerPolicy);
         return;
     }
     // Allow the idiom "img.src=''; img.src='.." to clear down the image before
     // an asynchronous load completes.
     if (imageSourceURL.isEmpty()) {
@@ skipping 216 matching lines @@
 
 void ImageLoader::elementDidMoveToNewDocument()
 {
     if (m_loadDelayCounter)
         m_loadDelayCounter->documentChanged(m_element->document());
     clearFailedLoadURL();
     setImage(0);
 }
 
 } // namespace blink