Make WebSpellCheckClient aware of leak detection

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

 /*
  * 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:
  *
  *     * 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 5248 matching lines @@
 
     virtual void requestCheckingOfText(
         const WebString&,
         const WebVector<uint32_t>&,
         const WebVector<unsigned>&,
         WebTextCheckingCompletion* completion) override
     {
         m_completion = completion;
     }
 
+    void cancelAllPendingRequests() override
+    {
+        if (!m_completion)
+            return;
+        m_completion->didCancelCheckingText();
+        m_completion = nullptr;
+    }
+
     void kickNoResults()
     {
         kick(-1, -1, WebTextDecorationTypeSpelling);
     }
 
     void kick()
     {
         kick(1, 8, WebTextDecorationTypeSpelling);
     }
 
@@ skipping 3546 matching lines @@
     request.setRequestorOrigin(WebSecurityOrigin::createUnique());
     helper.webView()->mainFrameImpl()->loadRequest(request);
 
     // Normally, the result of the JS url replaces the existing contents on the
     // Document. However, if the JS triggers a navigation, the contents should
     // not be replaced.
     EXPECT_EQ("", toLocalFrame(helper.webView()->page()->mainFrame())->document()->documentElement()->innerText());
 }
 
 } // namespace blink