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

third_party/WebKit/Source/core/html/HTMLElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004-2008, 2013, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2011 Motorola Mobility. 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
@@ skipping 399 matching lines @@
         {onwebkitfullscreenchangeAttr, EventTypeNames::webkitfullscreenchange},
         {onwebkitfullscreenerrorAttr, EventTypeNames::webkitfullscreenerror},
         {onwebkittransitionendAttr, EventTypeNames::webkitTransitionEnd},
         {onwheelAttr, EventTypeNames::wheel},
     };
 
     for (const auto& name : attrToEventNames)
       attributeNameToEventNameMap.set(name.attr.localName(), name.event);
   }
 
-  return attributeNameToEventNameMap.get(attrName.localName());
+  return attributeNameToEventNameMap.at(attrName.localName());
 }
 
 void HTMLElement::attributeChanged(const AttributeModificationParams& params) {
   Element::attributeChanged(params);
   if (params.reason != AttributeModificationReason::kDirectly)
     return;
   // adjustedFocusedElementInTreeScope() is not trivial. We should check
   // attribute names, then call adjustedFocusedElementInTreeScope().
   if (params.name == hiddenAttr && !params.newValue.isNull()) {
     if (adjustedFocusedElementInTreeScope() == this)
@@ skipping 748 matching lines @@
 
 #ifndef NDEBUG
 
 // For use in the debugger
 void dumpInnerHTML(blink::HTMLElement*);
 
 void dumpInnerHTML(blink::HTMLElement* element) {
   printf("%s\n", element->innerHTML().ascii().data());
 }
 #endif