Remove unused SPDY/3 enum values.

net/spdy/spdy_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/spdy/spdy_session.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 741 matching lines @@
   if (protocol_negotiated != kProtoUnknown) {
     protocol_ = protocol_negotiated;
     stream_initial_send_window_size_ = GetDefaultInitialWindowSize(protocol_);
   }
   DCHECK_GE(protocol_, kProtoSPDYMinimumVersion);
   DCHECK_LE(protocol_, kProtoSPDYMaximumVersion);
 
   if (protocol_ == kProtoHTTP2)
     send_connection_header_prefix_ = true;
 
-  if (protocol_ >= kProtoSPDY31) {
-    flow_control_state_ = FLOW_CONTROL_STREAM_AND_SESSION;
-    session_send_window_size_ = GetDefaultInitialWindowSize(protocol_);
-    session_recv_window_size_ = GetDefaultInitialWindowSize(protocol_);
-  } else {
-    flow_control_state_ = FLOW_CONTROL_STREAM;
-  }
+  flow_control_state_ = FLOW_CONTROL_STREAM_AND_SESSION;
+  session_send_window_size_ = GetDefaultInitialWindowSize(protocol_);
+  session_recv_window_size_ = GetDefaultInitialWindowSize(protocol_);
 
   buffered_spdy_framer_.reset(
       new BufferedSpdyFramer(NextProtoToSpdyMajorVersion(protocol_),
                              enable_compression_));
   buffered_spdy_framer_->set_visitor(this);
   buffered_spdy_framer_->set_debug_visitor(this);
   UMA_HISTOGRAM_ENUMERATION(
       "Net.SpdyVersion2",
       protocol_ - kProtoSPDYHistogramOffset,
       kProtoSPDYMaximumVersion - kProtoSPDYMinimumVersion + 1);
@@ skipping 2071 matching lines @@
     // This condition implies that |session_max_recv_window_size_| -
     // |session_recv_window_size_| doesn't overflow.
     DCHECK_GE(session_max_recv_window_size_, session_recv_window_size_);
     DCHECK_GE(session_recv_window_size_, 0);
     if (session_max_recv_window_size_ > session_recv_window_size_) {
       IncreaseRecvWindowSize(session_max_recv_window_size_ -
                              session_recv_window_size_);
     }
   }
 
-  if (protocol_ <= kProtoSPDY31) {
+  if (protocol_ == kProtoSPDY31) {
     // Finally, notify the server about the settings they have
     // previously told us to use when communicating with them (after
     // applying them).
     const SettingsMap& server_settings_map =
         http_server_properties_->GetSpdySettings(host_port_pair());
     if (server_settings_map.empty())
       return;
 
     SettingsMap::const_iterator it =
         server_settings_map.find(SETTINGS_CURRENT_CWND);
@@ skipping 451 matching lines @@
     if (!queue->empty()) {
       SpdyStreamId stream_id = queue->front();
       queue->pop_front();
       return stream_id;
     }
   }
   return 0;
 }
 
 }  // namespace net