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

third_party/WebKit/Source/modules/bluetooth/BluetoothUUID.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/bluetooth/BluetoothUUID.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptRegexp.h"
 #include "core/dom/ExceptionCode.h"
 #include "platform/UUID.h"
@@ skipping 286 matching lines @@
       map = getAssignedNumberForCharacteristicNameMap();
       attributeType = "Characteristic";
       break;
     case GATTAttribute::Descriptor:
       map = getAssignedNumberForDescriptorNameMap();
       attributeType = "Descriptor";
       break;
   }
 
   if (map->contains(nameStr))
-    return BluetoothUUID::canonicalUUID(map->get(nameStr));
+    return BluetoothUUID::canonicalUUID(map->at(nameStr));
 
   StringBuilder errorMessage;
   errorMessage.append("Invalid ");
   errorMessage.append(attributeType);
   errorMessage.append(" name: '");
   errorMessage.append(nameStr);
   errorMessage.append(
       "'. It must be a valid UUID alias (e.g. 0x1234), "
       "UUID (lowercase hex characters e.g. "
       "'00001234-0000-1000-8000-00805f9b34fb'), "
@@ skipping 51 matching lines @@
   builder.reserveCapacity(36 /* 36 chars or 128 bits, length of a UUID */);
   HexNumber::appendUnsignedAsHexFixedSize(
       alias, builder, 8 /* 8 chars or 32 bits, prefix length */,
       HexNumber::Lowercase);
 
   builder.append("-0000-1000-8000-00805f9b34fb");
   return builder.toString();
 }
 
 }  // namespace blink