WTF/std normalization: replace WTF::Vector::last with ::back

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 5741 matching lines @@
     return;
   size_t position = m_topLayerElements.find(element);
   DCHECK_NE(position, kNotFound);
   m_topLayerElements.remove(position);
   element->setIsInTopLayer(false);
 }
 
 HTMLDialogElement* Document::activeModalDialog() const {
   if (m_topLayerElements.isEmpty())
     return 0;
-  return toHTMLDialogElement(m_topLayerElements.last().get());
+  return toHTMLDialogElement(m_topLayerElements.back().get());
 }
 
 void Document::exitPointerLock() {
   if (!page())
     return;
   if (Element* target = page()->pointerLockController().element()) {
     if (target->document() != this)
       return;
     page()->pointerLockController().requestPointerUnlock();
   }
@@ skipping 750 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif