Implement chrome.streamsPrivate.abort() extensions function

content/browser/streams/stream_handle_impl.cc

 // 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.
 
 #include "content/browser/streams/stream_handle_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "content/browser/streams/stream.h"
 #include "net/http/http_response_headers.h"
 
 namespace content {
 
+namespace {
+
+void RunCloseListeners(const std::vector<base::Closure>& close_listeners) {
+  for (size_t i = 0; i < close_listeners.size(); ++i)
+    close_listeners[i].Run();
+}
+
+}  // namespace
+
 StreamHandleImpl::StreamHandleImpl(
     const base::WeakPtr<Stream>& stream,
     const GURL& original_url,
     const std::string& mime_type,
     scoped_refptr<net::HttpResponseHeaders> response_headers)
     : stream_(stream),
       url_(stream->url()),
       original_url_(original_url),
       mime_type_(mime_type),
       response_headers_(response_headers),
       stream_message_loop_(base::MessageLoopProxy::current().get()) {}
 
 StreamHandleImpl::~StreamHandleImpl() {
-  stream_message_loop_->PostTask(FROM_HERE,
-                                 base::Bind(&Stream::CloseHandle, stream_));
+  stream_message_loop_->PostTaskAndReply(FROM_HERE,
+      base::Bind(&Stream::CloseHandle, stream_),
+      base::Bind(&RunCloseListeners, close_listeners_));
 }
 
 const GURL& StreamHandleImpl::GetURL() {
   return url_;
 }
 
 const GURL& StreamHandleImpl::GetOriginalURL() {
   return original_url_;
 }
 
 const std::string& StreamHandleImpl::GetMimeType() {
   return mime_type_;
 }
 
 scoped_refptr<net::HttpResponseHeaders> StreamHandleImpl::GetResponseHeaders() {
   return response_headers_;
 }
 
+void StreamHandleImpl::AddCloseListener(const base::Closure& callback) {
+  close_listeners_.push_back(callback);
+}
+
 }  // namespace content