QuicChromiumClientStream handle Read() after trailers are received but not yet delivered

net/quic/chromium/bidirectional_stream_quic_impl.cc

 // Copyright 2016 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/quic/chromium/bidirectional_stream_quic_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 223 matching lines @@
     const SpdyHeaderBlock& headers,
     size_t frame_len) {
   headers_bytes_received_ += frame_len;
   negotiated_protocol_ = kProtoQUIC1SPDY3;
   if (!has_received_headers_) {
     has_received_headers_ = true;
     connect_timing_ = session_->GetConnectTiming();
     if (delegate_)
       delegate_->OnHeadersReceived(headers);
   } else {
-    if (stream_->IsDoneReading()) {
-      // If the write side is closed, OnFinRead() will call
-      // BidirectionalStreamQuicImpl::OnClose().
-      stream_->OnFinRead();
-    }
-    if (!delegate_)
-      return;
-    // Complete any remaining read. The task is posted because
-    // |delegate_|->OnTrailersReceived() might destroy |this|.
-    base::ThreadTaskRunnerHandle::Get()->PostTask(
-        FROM_HERE, base::Bind(&BidirectionalStreamQuicImpl::OnDataAvailable,
-                              weak_factory_.GetWeakPtr()));
-    delegate_->OnTrailersReceived(headers);
+    if (delegate_)
+      delegate_->OnTrailersReceived(headers);
     // |this| can be destroyed after this point.
   }
 }
 
 void BidirectionalStreamQuicImpl::OnDataAvailable() {
   // Return early if ReadData has not been called.
   if (!read_buffer_)
     return;
 
   int rv = ReadData(read_buffer_.get(), read_buffer_len_);
@@ skipping 94 matching lines @@
   if (!stream_)
     return;
   closed_stream_received_bytes_ = stream_->stream_bytes_read();
   closed_stream_sent_bytes_ = stream_->stream_bytes_written();
   closed_is_first_stream_ = stream_->IsFirstStream();
   stream_->SetDelegate(nullptr);
   stream_ = nullptr;
 }
 
 }  // namespace net