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

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourcePattern.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright 2014 The Chromium Authors. 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 57 matching lines @@
 }
 
 PatternData* LayoutSVGResourcePattern::patternForLayoutObject(
     const LayoutObject& object) {
   ASSERT(!m_shouldCollectPatternAttributes);
 
   // FIXME: the double hash lookup is needed to guard against paint-time
   // invalidation (painting animated images may trigger layout invals which
   // delete our map entry). Hopefully that will be addressed at some point, and
   // then we can optimize the lookup.
-  if (PatternData* currentData = m_patternMap.get(&object))
+  if (PatternData* currentData = m_patternMap.at(&object))
     return currentData;
 
   return m_patternMap.set(&object, buildPatternData(object))
       .storedValue->value.get();
 }
 
 std::unique_ptr<PatternData> LayoutSVGResourcePattern::buildPatternData(
     const LayoutObject& object) {
   // If we couldn't determine the pattern content element root, stop here.
   const PatternAttributes& attributes = this->attributes();
@@ skipping 123 matching lines @@
                                         tileTransform);
     for (LayoutObject* child = patternLayoutObject->firstChild(); child;
          child = child->nextSibling())
       SVGPaintContext::paintSubtree(builder.context(), child);
   }
 
   return builder.endRecording();
 }
 
 }  // namespace blink