Fix crash in network_service.

mojo/services/network/http_connection_impl.cc

 // Copyright 2015 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 "mojo/services/network/http_connection_impl.h"
 
 #include <limits>
 
 #include "base/bind_helpers.h"
 #include "base/callback.h"
@@ skipping 123 matching lines @@
 void HttpConnectionImpl::OnReceivedHttpRequest(
     const net::HttpServerRequestInfo& info) {
   if (EncounteredConnectionError())
     return;
 
   delegate_->OnReceivedRequest(
       HttpRequest::From(info), [this](HttpResponsePtr response) {
         if (response->body.is_valid()) {
           SimpleDataPipeReader* reader = new SimpleDataPipeReader;
           response_body_readers_.insert(reader);
+          ScopedDataPipeConsumerHandle body = response->body.Pass();
           reader->Start(
-              response->body.Pass(),
+              body.Pass(),
               base::Bind(&HttpConnectionImpl::OnFinishedReadingResponseBody,
                          base::Unretained(this), base::Passed(&response)));
         } else {
           OnFinishedReadingResponseBody(response.Pass(), nullptr, nullptr);
         }
       });
 }
 
 void HttpConnectionImpl::OnReceivedWebSocketRequest(
     const net::HttpServerRequestInfo& info) {
@@ skipping 78 matching lines @@
   if (body)
     info.SetBody(*body, content_type);
 
   owner_->server()->SendResponse(connection_id_, info);
 
   if (response_body_readers_.empty() && EncounteredConnectionError())
     owner_->server()->Close(connection_id_);
 }
 
 }  // namespace mojo