TypingCommand should not cancel previous spellcheck request if no new request in initiated

third_party/WebKit/Source/core/editing/spellcheck/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 334 matching lines @@
     TRACE_EVENT0("blink", "SpellChecker::markMisspellingsAfterLineBreak");
 
     if (!unifiedTextCheckerEnabled()) {
         markMisspellings(wordSelection);
         return;
     }
 
     if (!isContinuousSpellCheckingEnabled())
         return;
 
+    m_spellCheckRequester->cancelCheck();
+
     VisibleSelection wholeParagraph(
         startOfParagraph(wordSelection.visibleStart()),
         endOfParagraph(wordSelection.visibleEnd()));
 
     markAllMisspellingsAndBadGrammarInRanges(wordSelection.toNormalizedEphemeralRange(), wholeParagraph.toNormalizedEphemeralRange());
 }
 
 void SpellChecker::markMisspellingsAfterTypingToWord(const VisiblePosition &wordStart, const VisibleSelection& selectionAfterTyping)
 {
     if (!isContinuousSpellCheckingEnabled())
         return;
 
     TRACE_EVENT0("blink", "SpellChecker::markMisspellingsAfterTypingToWord");
 
     if (unifiedTextCheckerEnabled()) {
+        m_spellCheckRequester->cancelCheck();
+
         VisibleSelection adjacentWords = VisibleSelection(startOfWord(wordStart, LeftWordIfOnBoundary), endOfWord(wordStart, RightWordIfOnBoundary));
         VisibleSelection selectedSentence = VisibleSelection(startOfSentence(wordStart), endOfSentence(wordStart));
         markAllMisspellingsAndBadGrammarInRanges(adjacentWords.toNormalizedEphemeralRange(), selectedSentence.toNormalizedEphemeralRange());
         return;
     }
 
     // Check spelling of one word
     bool result = markMisspellings(VisibleSelection(startOfWord(wordStart, LeftWordIfOnBoundary), endOfWord(wordStart, RightWordIfOnBoundary)));
 
     if (!result)
@@ skipping 561 matching lines @@
     visitor->trace(m_frame);
     visitor->trace(m_spellCheckRequester);
 }
 
 void SpellChecker::prepareForLeakDetection()
 {
     m_spellCheckRequester->prepareForLeakDetection();
 }
 
 } // namespace blink