Fix garbage collection with ColdModeSpellCheckRequester

third_party/WebKit/Source/core/editing/spellcheck/ColdModeSpellCheckRequester.cpp

 // Copyright 2017 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 "core/editing/spellcheck/ColdModeSpellCheckRequester.h"
 
 #include "core/dom/Element.h"
 #include "core/dom/IdleDeadline.h"
 #include "core/editing/EditingUtilities.h"
 #include "core/editing/VisibleUnits.h"
@@ skipping 17 matching lines @@
   // TODO(editing-dev): Make |Position| constructors take const parameters.
   const Position& position =
       Position::firstPositionInNode(const_cast<Node*>(&node));
   if (!isEditablePosition(position))
     return false;
   return SpellChecker::isSpellCheckingEnabledAt(position);
 }
 
 }  // namespace
 
-ColdModeSpellCheckRequester::~ColdModeSpellCheckRequester() = default;
-
 // static
 ColdModeSpellCheckRequester* ColdModeSpellCheckRequester::create(
     LocalFrame& frame) {
   return new ColdModeSpellCheckRequester(frame);
 }
 
 DEFINE_TRACE(ColdModeSpellCheckRequester) {
   visitor->trace(m_frame);
   visitor->trace(m_nextNode);
   visitor->trace(m_currentRootEditable);
@@ skipping 122 matching lines @@
   m_nextNode = FlatTreeTraversal::nextSkippingChildren(
       *m_nextNode, frame().document()->body());
 
   m_currentRootEditable = nullptr;
   m_currentFullLength = kInvalidLength;
   m_currentChunkIndex = kInvalidChunkIndex;
   m_currentChunkStart = Position();
 }
 
 }  // namespace blink