Remove enable_priority_dependencies.

net/spdy/spdy_session.h

 // 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.
 
 #ifndef NET_SPDY_SPDY_SESSION_H_
 #define NET_SPDY_SPDY_SESSION_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 276 matching lines @@
   // |spdy_session_key| is the host/port that this session connects to, privacy
   // and proxy configuration settings that it's using.
   // |session| is the HttpNetworkSession.  |net_log| is the NetLog that we log
   // network events to.
   SpdySession(const SpdySessionKey& spdy_session_key,
               HttpServerProperties* http_server_properties,
               TransportSecurityState* transport_security_state,
               bool verify_domain_authentication,
               bool enable_sending_initial_data,
               bool enable_ping_based_connection_checking,
-              bool enable_priority_dependencies,
               size_t session_max_recv_window_size,
               size_t stream_max_recv_window_size,
               TimeFunc time_func,
               ProxyDelegate* proxy_delegate,
               NetLog* net_log);
 
   ~SpdySession() override;
 
   const HostPortPair& host_port_pair() const {
     return spdy_session_key_.host_port_proxy_pair().first;
@@ skipping 882 matching lines @@
   // get a PING response (http://crbug.com/127812).
   base::TimeDelta hung_interval_;
 
   // The |proxy_delegate_| verifies that a given proxy is a trusted SPDY proxy,
   // which is allowed to push resources from origins that are different from
   // those of their associated streams. May be nullptr.
   ProxyDelegate* proxy_delegate_;
 
   TimeFunc time_func_;
 
-  const bool priority_dependencies_enabled_;
   Http2PriorityDependencies priority_dependency_state_;
 
   // Used for posting asynchronous IO tasks.  We use this even though
   // SpdySession is refcounted because we don't need to keep the SpdySession
   // alive if the last reference is within a RunnableMethod.  Just revoke the
   // method.
   base::WeakPtrFactory<SpdySession> weak_factory_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_SESSION_H_