MediaStream should fire ended event when all tracks are ended

Source/WebCore/platform/network/SocketStreamErrorBase.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * 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.
@@ skipping 22 matching lines @@
 #define SocketStreamErrorBase_h
 
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
     class SocketStreamError;
 
     class SocketStreamErrorBase {
     public:
-        // Makes a deep copy.  Useful for when you need to use a SocketStreamError on another thread.
-        SocketStreamError copy() const;
 
         bool isNull() const { return m_isNull; }
 
         int errorCode() const { return m_errorCode; }
         const String& failingURL() const { return m_failingURL; }
         const String& localizedDescription() const { return m_localizedDescription; }
 
         static bool compare(const SocketStreamError&, const SocketStreamError&);
 
     protected:
@@ skipping 22 matching lines @@
         String m_localizedDescription;
         bool m_isNull;
     };
 
     inline bool operator==(const SocketStreamError& a, const SocketStreamError& b) { return SocketStreamErrorBase::compare(a, b); }
     inline bool operator!=(const SocketStreamError& a, const SocketStreamError& b) { return !(a == b); }
 
 }  // namespace WebCore
 
 #endif  // SocketStreamErrorBase_h