Make WebSpellCheckClient aware of leak detection

components/test_runner/spell_check_client.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_SPELL_CHECK_CLIENT_H_
 #define COMPONENTS_TEST_RUNNER_SPELL_CHECK_CLIENT_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 28 matching lines @@
       blink::WebVector<blink::WebString>* optional_suggestions) override;
   void checkTextOfParagraph(
       const blink::WebString& text,
       blink::WebTextCheckingTypeMask mask,
       blink::WebVector<blink::WebTextCheckingResult>* web_results) override;
   void requestCheckingOfText(
       const blink::WebString& text,
       const blink::WebVector<uint32_t>& markers,
       const blink::WebVector<unsigned>& marker_offsets,
       blink::WebTextCheckingCompletion* completion) override;
+  void cancelAllPendingRequests() override;
 
  private:
   void FinishLastTextCheck();
 
   // The mock spellchecker used in spellCheck().
   MockSpellCheck spell_check_;
 
   blink::WebString last_requested_text_check_string_;
   blink::WebTextCheckingCompletion* last_requested_text_checking_completion_;
 
   TestRunner* test_runner_;
   WebTestDelegate* delegate_;
 
   base::WeakPtrFactory<SpellCheckClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SpellCheckClient);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_SPELL_CHECK_CLIENT_H_