Make WebSpellCheckClient aware of leak detection

third_party/WebKit/Source/web/SpellCheckerClientImpl.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 36 matching lines @@
 
     bool isContinuousSpellCheckingEnabled() override;
     void toggleContinuousSpellChecking() override;
     void checkSpellingOfString(const String&, int* misspellingLocation, int* misspellingLength) override;
     void checkGrammarOfString(const String&, Vector<GrammarDetail>&,
         int* badGrammarLocation, int* badGrammarLength) override;
     void updateSpellingUIWithMisspelledWord(const String&) override;
     void showSpellingUI(bool show) override;
     bool spellingUIIsShowing() override;
     void requestCheckingOfString(TextCheckingRequest*) override;
+    void cancelAllPendingRequests() override;
 
     TextCheckerClient& textChecker() override { return *this; }
 
 private:
     // Returns whether or not the focused control needs spell-checking.
     // Currently, this function just retrieves the focused node and determines
     // whether or not it is a <textarea> element or an element whose
     // contenteditable attribute is true.
     // FIXME: Bug 740540: This code just implements the default behavior
     // proposed in this issue. We should also retrieve "spellcheck" attributes
     // for text fields and create a flag to over-write the default behavior.
     bool shouldSpellcheckByDefault();
 
     WebViewImpl* m_webView;
 
     // This flag is set to false if spell check for this editor is manually
     // turned off. The default setting is SpellCheckAutomatic.
     enum {
         SpellCheckAutomatic,
         SpellCheckForcedOn,
         SpellCheckForcedOff
     } m_spellCheckThisFieldStatus;
 };
 
 } // namespace blink
 
 #endif