Use VisibleSelection::InDOMTree::equalSelections() instead of operator==()

Source/core/editing/SpellChecker.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 398 matching lines @@
     if (!misspellingRange)
         return;
 
     // Get the misspelled word.
     const String misspelledWord = plainText(misspellingRange.get());
     String autocorrectedString = textChecker().getAutoCorrectSuggestionForMisspelledWord(misspelledWord);
 
     // If autocorrected word is non empty, replace the misspelled word by this word.
     if (!autocorrectedString.isEmpty()) {
         VisibleSelection newSelection(misspellingRange.get(), DOWNSTREAM);
-        if (newSelection != frame().selection().selection()) {
+        if (!VisibleSelection::InDOMTree::equalSelections(newSelection, frame().selection().selection())) {
             frame().selection().setSelection(newSelection);
         }
 
         frame().editor().replaceSelectionWithText(autocorrectedString, false, false);
 
         // Reset the charet one character further.
         frame().selection().moveTo(frame().selection().selection().visibleEnd());
         frame().selection().modify(FrameSelection::AlterationMove, DirectionForward, CharacterGranularity);
     }
 
@@ skipping 426 matching lines @@
     }
 
     VisibleSelection empty;
     spellCheckOldSelection(frame().selection().selection(), empty);
 }
 
 void SpellChecker::spellCheckOldSelection(const VisibleSelection& oldSelection, const VisibleSelection& newAdjacentWords)
 {
     VisiblePosition oldStart(oldSelection.visibleStart());
     VisibleSelection oldAdjacentWords = VisibleSelection(startOfWord(oldStart, LeftWordIfOnBoundary), endOfWord(oldStart, RightWordIfOnBoundary));
-    if (oldAdjacentWords  != newAdjacentWords) {
+    if (!VisibleSelection::InDOMTree::equalSelections(oldAdjacentWords, newAdjacentWords)) {
         if (isContinuousSpellCheckingEnabled() && isGrammarCheckingEnabled()) {
             VisibleSelection selectedSentence = VisibleSelection(startOfSentence(oldStart), endOfSentence(oldStart));
             markMisspellingsAndBadGrammar(oldAdjacentWords, true, selectedSentence);
         } else {
             markMisspellingsAndBadGrammar(oldAdjacentWords, false, oldAdjacentWords);
         }
     }
 }
 
 static Node* findFirstMarkable(Node* node)
@@ skipping 67 matching lines @@
     m_spellCheckRequester->requestCheckingFor(SpellCheckRequest::create(TextCheckingTypeSpelling | TextCheckingTypeGrammar, TextCheckingProcessBatch, rangeToCheck, rangeToCheck));
 }
 
 DEFINE_TRACE(SpellChecker)
 {
     visitor->trace(m_frame);
     visitor->trace(m_spellCheckRequester);
 }
 
 } // namespace blink