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

third_party/WebKit/Source/core/editing/serializers/StyledMarkupSerializer.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008, 2009, 2010, 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Igalia S.L.
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 360 matching lines @@
     }
 
     // If we didn't insert open tag and there's no more siblings or we're at the
     // end of the traversal, take care of ancestors.
     // FIXME: What happens if we just inserted open tag and reached the end?
     if (Strategy::nextSibling(*n) && next != pastEnd)
       continue;
 
     // Close up the ancestors.
     while (!ancestorsToClose.isEmpty()) {
-      ContainerNode* ancestor = ancestorsToClose.last();
+      ContainerNode* ancestor = ancestorsToClose.back();
       DCHECK(ancestor);
       if (next && next != pastEnd && Strategy::isDescendantOf(*next, *ancestor))
         break;
       // Not at the end of the range, close ancestors up to sibling of next
       // node.
       appendEndMarkup(*ancestor);
       lastClosed = ancestor;
       ancestorsToClose.pop_back();
     }
 
@@ skipping 146 matching lines @@
   if (element.isHTMLElement() && shouldAnnotate())
     inlineStyle->mergeStyleFromRulesForSerialization(&toHTMLElement(element));
 
   return inlineStyle;
 }
 
 template class StyledMarkupSerializer<EditingStrategy>;
 template class StyledMarkupSerializer<EditingInFlatTreeStrategy>;
 
 }  // namespace blink