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

third_party/WebKit/Source/modules/accessibility/AXNodeObject.cpp

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 894 matching lines @@
 void AXNodeObject::getSparseAXAttributes(
     AXSparseAttributeClient& sparseAttributeClient) const {
   Node* node = this->getNode();
   if (!node || !node->isElementNode())
     return;
 
   AXSparseAttributeSetterMap& axSparseAttributeSetterMap =
       getSparseAttributeSetterMap();
   AttributeCollection attributes = toElement(node)->attributesWithoutUpdate();
   for (const Attribute& attr : attributes) {
-    SparseAttributeSetter* setter = axSparseAttributeSetterMap.get(attr.name());
+    SparseAttributeSetter* setter = axSparseAttributeSetterMap.at(attr.name());
     if (setter)
       setter->run(*this, sparseAttributeClient, attr.value());
   }
 }
 
 bool AXNodeObject::isAnchor() const {
   return !isNativeImage() && isLink();
 }
 
 bool AXNodeObject::isControl() const {
@@ skipping 2189 matching lines @@
     return String();
   return toTextControlElement(node)->strippedPlaceholder();
 }
 
 DEFINE_TRACE(AXNodeObject) {
   visitor->trace(m_node);
   AXObject::trace(visitor);
 }
 
 }  // namespace blink