Stop async spellchecker before running the leak detector.

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckRequester.h

 /*
  * Copyright (C) 2010 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 87 matching lines @@
     int lastRequestSequence() const
     {
         return m_lastRequestSequence;
     }
 
     int lastProcessedSequence() const
     {
         return m_lastProcessedSequence;
     }
 
+    // Exposed for leak detector only, see comment for corresponding
+    // SpellChecker method.
+    void prepareForLeakDetection();
+
 private:
     friend class SpellCheckRequest;
 
     explicit SpellCheckRequester(LocalFrame&);
 
     bool canCheckAsynchronously(Range*) const;
     TextCheckerClient& client() const;
     void timerFiredToProcessQueuedRequest(Timer<SpellCheckRequester>*);
     void invokeRequest(PassRefPtrWillBeRawPtr<SpellCheckRequest>);
     void enqueueRequest(PassRefPtrWillBeRawPtr<SpellCheckRequest>);
@@ skipping 17 matching lines @@
 
     RefPtrWillBeMember<SpellCheckRequest> m_processingRequest;
 
     typedef WillBeHeapDeque<RefPtrWillBeMember<SpellCheckRequest>> RequestQueue;
     RequestQueue m_requestQueue;
 };
 
 } // namespace blink
 
 #endif // SpellCheckRequester_h