Clean up WebDOMEvent ownership of WebCore::Event.

Source/WebKit/chromium/public/WebSpeechInputResult.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
@@ skipping 27 matching lines @@
 namespace WebKit {
 
 // This class holds one speech recognition result including the text and other related
 // fields, as received from the embedder.
 class WebSpeechInputResult {
 public:
     WebSpeechInputResult() { }
     WebSpeechInputResult(const WebSpeechInputResult& other) { assign(other); }
     ~WebSpeechInputResult() { reset(); }
 
+    WebSpeechInputResult& operator=(const WebSpeechInputResult& other)
+    {
+        assign(other);
+        return *this;
+    }

[dmichael (off chromium), 2013/05/22 17:00:28]

The compiler-provided assignment was being used in a mock object in
DumpRenderTree, and that was implicitly using the compiler-provided assignment
of WebPrivatePtr.

+
     WEBKIT_EXPORT void assign(const WebString& utterance, double confidence);
     WEBKIT_EXPORT void assign(const WebSpeechInputResult& other);
     WEBKIT_EXPORT void reset();
 
 #if WEBKIT_IMPLEMENTATION
     WebSpeechInputResult(const WTF::PassRefPtr<WebCore::SpeechInputResult>&);
     operator WTF::PassRefPtr<WebCore::SpeechInputResult>() const;
 #endif
 
 private:
     WebPrivatePtr<WebCore::SpeechInputResult> m_private;
 };
 
 typedef WebVector<WebSpeechInputResult> WebSpeechInputResultArray;
 
 } // namespace WebKit
 
 #endif // WebSpeechInputResult_h