Killing off QUICv12, including cleaning out all of the code for handling

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 "net/base/net_export.h"
 #include "net/quic/quic_protocol.h"
 #include "net/spdy/write_blocked_list.h"
@@ skipping 39 matching lines @@
     } else if (headers_stream_blocked_) {
       headers_stream_blocked_ = false;
       return kHeadersStreamId;
     } else {
       SpdyPriority priority =
           base_write_blocked_list_.GetHighestPriorityWriteBlockedList();
       return base_write_blocked_list_.PopFront(priority);
     }
   }
 
-  // TODO(avd) Remove version argument when QUIC_VERSION_12 is deprecated.
-  void PushBack(QuicStreamId stream_id,
-                QuicPriority priority,
-                QuicVersion version) {
+  void PushBack(QuicStreamId stream_id, QuicPriority priority) {
     if (stream_id == kCryptoStreamId) {
       DCHECK_EQ(kHighestPriority, priority);
       // TODO(avd) Add DCHECK(!crypto_stream_blocked_)
       crypto_stream_blocked_ = true;
-    } else if (version > QUIC_VERSION_12 &&
-               stream_id == kHeadersStreamId) {
+    } else if (stream_id == kHeadersStreamId) {
       DCHECK_EQ(kHighestPriority, priority);
       // TODO(avd) Add DCHECK(!headers_stream_blocked_);
       headers_stream_blocked_ = true;
     } else {
       base_write_blocked_list_.PushBack(
           stream_id, static_cast<SpdyPriority>(priority));
     }
   }
 
  private:
   QuicWriteBlockedListBase base_write_blocked_list_;
   bool crypto_stream_blocked_;
   bool headers_stream_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicWriteBlockedList);
 };
 
 }  // namespace net
 
 
 #endif  // NET_QUIC_QUIC_WRITE_BLOCKED_LIST_H_