Remove "legacy" experimental stream support

third_party/WebKit/Source/core/streams/Stream.h

 /*
  * Copyright (C) 2013 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Stream_h
 #define Stream_h
 
-#include "bindings/core/v8/ScriptWrappable.h"
 #include "core/CoreExport.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ExecutionContext;
 
 class CORE_EXPORT Stream final : public GarbageCollectedFinalized<Stream>,
-                                 public ScriptWrappable,
                                  public ActiveDOMObject {
   USING_GARBAGE_COLLECTED_MIXIN(Stream);
-  DEFINE_WRAPPERTYPEINFO();
 
  public:
   static Stream* create(ExecutionContext* context, const String& mediaType) {
     Stream* stream = new Stream(context, mediaType);
     stream->suspendIfNeeded();
     return stream;
   }
 
   ~Stream() override;
 
@@ skipping 38 matching lines @@
   KURL m_internalURL;
 
   String m_mediaType;
 
   bool m_isNeutered;
 };
 
 }  // namespace blink
 
 #endif  // Stream_h