add setter for enable_pkp_bypass_etc

components/cronet/ios/cronet_environment.mm

 // Copyright 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 "components/cronet/ios/cronet_environment.h"
 
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/atomicops.h"
@@ skipping 203 matching lines @@
   quic_hints_.push_back(net::HostPortPair(host, port));
 }
 
 CronetEnvironment::CronetEnvironment(const std::string& user_agent,
                                      bool user_agent_partial)
     : http2_enabled_(false),
       quic_enabled_(false),
       http_cache_(URLRequestContextConfig::HttpCacheType::DISK),
       user_agent_(user_agent),
       user_agent_partial_(user_agent_partial),
-      net_log_(new net::NetLog) {}
+      net_log_(new net::NetLog),
+      enable_pkp_bypass_for_local_trust_anchors_(true) {}
 
 void CronetEnvironment::Start() {
   // Threads setup.
   network_cache_thread_.reset(new base::Thread("Chrome Network Cache Thread"));
   network_cache_thread_->StartWithOptions(
       base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
   network_io_thread_.reset(new base::Thread("Chrome Network IO Thread"));
   network_io_thread_->StartWithOptions(
       base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
   file_thread_.reset(new base::Thread("Chrome File Thread"));
@@ skipping 104 matching lines @@
     url::SchemeHostPort quic_hint_server("https", quic_hint.host(),
                                          quic_hint.port());
     http_server_properties->SetAlternativeService(
         quic_hint_server, alternative_service, base::Time::Max());
   }
 
   context_builder.SetHttpServerProperties(std::move(http_server_properties));
 
   main_context_ = context_builder.Build();
 
-  // Iterate through PKP configuration for every host.
+  main_context_->transport_security_state()
+      ->SetEnablePublicKeyPinningBypassForLocalTrustAnchors(
+          enable_pkp_bypass_for_local_trust_anchors_);
+
+  // Iterate trhough PKP configuration for every host.
   for (const auto& pkp : config->pkp_list) {
     // Add the host pinning.
     main_context_->transport_security_state()->AddHPKP(
         pkp->host, pkp->expiration_date, pkp->include_subdomains,
         pkp->pin_hashes, GURL::EmptyGURL());
   }
 }
 
 std::string CronetEnvironment::user_agent() {
   const net::HttpUserAgentSettings* user_agent_settings =
@@ skipping 31 matching lines @@
   event->Signal();
 }
 
 std::string CronetEnvironment::getDefaultQuicUserAgentId() const {
   return base::SysNSStringToUTF8([[NSBundle mainBundle]
              objectForInfoDictionaryKey:@"CFBundleDisplayName"]) +
          " Cronet/" + CRONET_VERSION;
 }
 
 }  // namespace cronet