Implement chrome.streamsPrivate.abort() extensions function

content/browser/streams/stream_handle_impl.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_STREAMS_STREAM_HANDLE_IMPL_H_
 #define CONTENT_BROWSER_STREAMS_STREAM_HANDLE_IMPL_H_
 
+#include <vector>
+
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/stream_handle.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace content {
 
 class Stream;
 
 class StreamHandleImpl : public StreamHandle {
  public:
   StreamHandleImpl(const base::WeakPtr<Stream>& stream,
                    const GURL& original_url,
                    const std::string& mime_type,
                    scoped_refptr<net::HttpResponseHeaders> response_headers);
   virtual ~StreamHandleImpl();
 
  private:
   // StreamHandle overrides
   virtual const GURL& GetURL() OVERRIDE;
   virtual const GURL& GetOriginalURL() OVERRIDE;
   virtual const std::string& GetMimeType() OVERRIDE;
   virtual scoped_refptr<net::HttpResponseHeaders> GetResponseHeaders() OVERRIDE;
+  virtual void AddCloseListener(const base::Closure& callback) OVERRIDE;
 
   base::WeakPtr<Stream> stream_;
   GURL url_;
   GURL original_url_;
   std::string mime_type_;
   scoped_refptr<net::HttpResponseHeaders> response_headers_;
   base::MessageLoopProxy* stream_message_loop_;
+  std::vector<base::Closure> close_listeners_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_STREAMS_STREAM_HANDLE_IMPL_H_