Remove HttpStreamFactory::spdy_enabled_ static member and accessors.

net/http/http_stream_factory_impl_job_controller.cc

 // Copyright (c) 2016 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/http/http_stream_factory_impl_job_controller.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "net/base/host_mapping_rules.h"
@@ skipping 732 matching lines @@
     // These systems also enforce ports <1024 as restricted ports.  So don't
     // allow protocol upgrades to user-controllable ports.
     const int kUnrestrictedPort = 1024;
     if (!session_->params().enable_user_alternate_protocol_ports &&
         (alternative_service.port >= kUnrestrictedPort &&
          origin.port() < kUnrestrictedPort))
       continue;
 
     if (alternative_service.protocol >= NPN_SPDY_MINIMUM_VERSION &&
         alternative_service.protocol <= NPN_SPDY_MAXIMUM_VERSION) {
-      if (!HttpStreamFactory::spdy_enabled())

[mef, 2016/07/13 18:26:32]

It seems that this flag is used to control both spdy31 and h2. Do we really want
to remove it?

[Bence, 2016/07/15 20:35:33]

Ugh, good catch.  This was definitely not my intention.  I addressed it
separately at https://crrev.com/2150773003 and rebased this CL on that one.  I
am sorry for the oversight.

-        continue;
-
       if (origin.host() != alternative_service.host &&
           !session_->params()
                .enable_http2_alternative_service_with_different_host) {
         continue;
       }
 
       // Cache this entry if we don't have a non-broken Alt-Svc yet.
       if (first_alternative_service.protocol ==
           UNINITIALIZED_ALTERNATE_PROTOCOL)
         first_alternative_service = alternative_service;
@@ skipping 44 matching lines @@
       first_alternative_service = alternative_service;
   }
 
   // Ask delegate to mark QUIC as broken for the origin.
   if (quic_advertised && quic_all_broken && delegate != nullptr)
     delegate->OnQuicBroken();
 
   return first_alternative_service;
 }
 }