relnote: add connection option "SPSH" to indicate whether client wants to do server push or not, wh…

net/tools/quic/quic_simple_server_session.cc

 // Copyright (c) 2012 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 "net/tools/quic/quic_simple_server_session.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "net/quic/proto/cached_network_parameters.pb.h"
 #include "net/quic/quic_connection.h"
@@ skipping 47 matching lines @@
     return;
   }
   QuicSpdySession::OnStreamFrame(frame);
 }
 
 void QuicSimpleServerSession::PromisePushResources(
     const string& request_url,
     const std::list<QuicInMemoryCache::ServerPushInfo>& resources,
     QuicStreamId original_stream_id,
     const SpdyHeaderBlock& original_request_headers) {
+  if (!server_push_enabled()) {
+    return;
+  }
+
   for (QuicInMemoryCache::ServerPushInfo resource : resources) {
     SpdyHeaderBlock headers = SynthesizePushRequestHeaders(
         request_url, resource, original_request_headers);
     highest_promised_stream_id_ += 2;
     SendPushPromise(original_stream_id, highest_promised_stream_id_, headers);
     promised_streams_.push_back(PromisedStreamInfo(
         headers, highest_promised_stream_id_, resource.priority));
   }
 
   // Procese promised push request as many as possible.
@@ skipping 111 matching lines @@
     DVLOG(1) << "created server push stream " << promised_stream->id();
 
     const SpdyHeaderBlock request_headers(promised_info.request_headers);
 
     promised_streams_.pop_front();
     promised_stream->PushResponse(request_headers);
   }
 }
 
 }  // namespace net