Migrate WTF::HashMap::get() to ::at()

third_party/WebKit/Source/platform/loader/fetch/ResourceFetcher.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
     rights reserved.
     Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
@@ skipping 250 matching lines @@
           &ResourceFetcher::resourceTimingReportTimerFired),
       m_autoLoadImages(true),
       m_imagesEnabled(true),
       m_allowStaleResources(false),
       m_imageFetched(false) {}
 
 ResourceFetcher::~ResourceFetcher() {}
 
 Resource* ResourceFetcher::cachedResource(const KURL& resourceURL) const {
   KURL url = MemoryCache::removeFragmentIdentifierIfNeeded(resourceURL);
-  const WeakMember<Resource>& resource = m_documentResources.get(url);
+  const WeakMember<Resource>& resource = m_documentResources.at(url);
   return resource.get();
 }
 
 bool ResourceFetcher::isControlledByServiceWorker() const {
   return context().isControlledByServiceWorker();
 }
 
 bool ResourceFetcher::resourceNeedsLoad(Resource* resource,
                                         const FetchRequest& request,
                                         RevalidationPolicy policy) {
@@ skipping 1258 matching lines @@
   visitor->trace(m_context);
   visitor->trace(m_archive);
   visitor->trace(m_loaders);
   visitor->trace(m_nonBlockingLoaders);
   visitor->trace(m_documentResources);
   visitor->trace(m_preloads);
   visitor->trace(m_resourceTimingInfoMap);
 }
 
 }  // namespace blink