Removing quic version 21

net/quic/quic_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/quic/quic_session.h"
 
 #include "base/stl_util.h"
 #include "net/quic/crypto/proof_verifier.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_flow_controller.h"
@@ skipping 237 matching lines @@
       // individual stream.
       DVLOG(1) << ENDPOINT
                << "Received connection level flow control window update with "
                   "byte offset: " << frames[i].byte_offset;
       if (flow_controller_->UpdateSendWindowOffset(frames[i].byte_offset)) {
         connection_window_updated = true;
       }
       continue;
     }
 
-    if (connection_->version() < QUIC_VERSION_21 &&
-        (stream_id == kCryptoStreamId || stream_id == kHeadersStreamId)) {
-      DLOG(DFATAL) << "WindowUpdate for stream " << stream_id << " in version "
-                   << QuicVersionToString(connection_->version());
-      return;
-    }
-
     ReliableQuicStream* stream = GetStream(stream_id);
     if (stream) {
       stream->OnWindowUpdateFrame(frames[i]);
     }
   }
 
   // Connection level flow control window has increased, so blocked streams can
   // write again.
   if (connection_window_updated) {
     OnCanWrite();
@@ skipping 216 matching lines @@
     LOG(ERROR) << "Peer sent us an invalid stream flow control send window: "
                << new_window
                << ", below default: " << kMinimumFlowControlSendWindow;
     if (connection_->connected()) {
       connection_->SendConnectionClose(QUIC_FLOW_CONTROL_INVALID_WINDOW);
     }
     return;
   }
 
   // Inform all existing streams about the new window.
-  if (connection_->version() >= QUIC_VERSION_21) {
-    GetCryptoStream()->UpdateSendWindowOffset(new_window);
-    headers_stream_->UpdateSendWindowOffset(new_window);
-  }
+  GetCryptoStream()->UpdateSendWindowOffset(new_window);
+  headers_stream_->UpdateSendWindowOffset(new_window);
   for (DataStreamMap::iterator it = stream_map_.begin();
        it != stream_map_.end(); ++it) {
     it->second->UpdateSendWindowOffset(new_window);
   }
 }
 
 void QuicSession::OnNewSessionFlowControlWindow(QuicStreamOffset new_window) {
   if (new_window < kMinimumFlowControlSendWindow) {
     LOG(ERROR) << "Peer sent us an invalid session flow control send window: "
                << new_window
@@ skipping 231 matching lines @@
   for (DataStreamMap::iterator it = stream_map_.begin();
        it != stream_map_.end(); ++it) {
     if (it->second->flow_controller()->IsBlocked()) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace net