Respect QuicAllowed policy for new streams

ios/chrome/browser/ios_chrome_io_thread.mm

 // Copyright 2015 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 "ios/chrome/browser/ios_chrome_io_thread.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 392 matching lines @@
   params_.enable_user_alternate_protocol_ports = false;
 
   std::string quic_user_agent_id = ::GetChannelString();
   if (!quic_user_agent_id.empty())
     quic_user_agent_id.push_back(' ');
   quic_user_agent_id.append(
       version_info::GetProductNameAndVersionForUserAgent());
   quic_user_agent_id.push_back(' ');
   quic_user_agent_id.append(web::BuildOSCpuInfo());
 
+  globals_->http_network_session_dynamic_shared_params.reset(

[Bence, 2016/12/20 14:58:07]

= base::MakeUnique

[pmarko, 2016/12/20 18:00:37]

Done.

+      new net::HttpNetworkSession::DynamicSharedParams());
+  params_.dynamic_shared_params =
+      globals_->http_network_session_dynamic_shared_params.get();
+
   network_session_configurator::ParseFieldTrials(
       /*is_quic_force_disabled=*/false,
       /*is_quic_force_enabled=*/false, quic_user_agent_id, &params_);
 
   // InitSystemRequestContext turns right around and posts a task back
   // to the IO thread, so we can't let it run until we know the IO
   // thread has started.
   //
   // Note that since we are at WebThread::Init time, the UI thread
   // is blocked waiting for the thread to start.  Therefore, posting
@@ skipping 144 matching lines @@
 
   globals->system_http_network_session.reset(
       new net::HttpNetworkSession(system_params));
   globals->system_http_transaction_factory.reset(
       new net::HttpNetworkLayer(globals->system_http_network_session.get()));
   context->set_http_transaction_factory(
       globals->system_http_transaction_factory.get());
 
   return context;
 }