Fix a bug protected by gfe2_reloadable_flag_quic_respect_send_alarm where acks would not be sent im…

net/quic/quic_write_blocked_list.h

 // Copyright 2014 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 NET_QUIC_QUIC_WRITE_BLOCKED_LIST_H_
 #define NET_QUIC_QUIC_WRITE_BLOCKED_LIST_H_
 
 #include <set>
 
 #include "net/base/net_export.h"
@@ skipping 107 matching lines @@
   void UpdateBytesForStream(QuicStreamId stream_id, size_t bytes) {
     if (batch_write_stream_id_[last_priority_popped_] == stream_id) {
       // If this was the last data stream popped by PopFront, update the
       // bytes remaining in its batch write.
       bytes_left_for_batch_write_[last_priority_popped_] -=
           static_cast<int32>(bytes);
     } else {
       // If a batch write stream was set, it should only be preempted by the
       // crypto or headers streams.  Any higher priority data stream would
       // *become* the new batch write stream.
-      if (FLAGS_quic_respect_send_alarm && FLAGS_quic_batch_writes) {
+      if (FLAGS_quic_respect_send_alarm2 && FLAGS_quic_batch_writes) {
         DCHECK(stream_id == kCryptoStreamId || stream_id == kHeadersStreamId ||
                batch_write_stream_id_[last_priority_popped_] == 0 ||
                bytes == 0);
       }
     }
   }
 
   // Pushes a stream to the back of the list for this priority level
   // *unless* it is latched for doing batched writes in which case it goes to
   // the front of the list for this priority level.
@@ skipping 53 matching lines @@
   bool crypto_stream_blocked_;
   bool headers_stream_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicWriteBlockedList);
 };
 
 }  // namespace net
 
 
 #endif  // NET_QUIC_QUIC_WRITE_BLOCKED_LIST_H_