Disable LogChannelIDAndCookieStores NOTREACHED.

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 429 matching lines @@
   globals_->ssl_config_service = GetSSLConfigService();
 
   CreateDefaultAuthHandlerFactory();
   globals_->http_server_properties.reset(new net::HttpServerPropertiesImpl());
   // In-memory cookie store.
   globals_->system_cookie_store.reset(new net::CookieMonster(nullptr, nullptr));
   // In-memory channel ID store.
   globals_->system_channel_id_service.reset(
       new net::ChannelIDService(new net::DefaultChannelIDStore(nullptr),
                                 base::WorkerPool::GetTaskRunner(true)));
+  globals_->system_cookie_store->SetChannelIDServiceID(
+      globals_->system_channel_id_service->GetUniqueID());
   globals_->http_user_agent_settings.reset(new net::StaticHttpUserAgentSettings(
       std::string(), web::GetWebClient()->GetUserAgent(false)));
   if (command_line.HasSwitch(switches::kIOSTestingFixedHttpPort)) {
     globals_->testing_fixed_http_port =
         GetSwitchValueAsInt(command_line, switches::kIOSTestingFixedHttpPort);
   }
   if (command_line.HasSwitch(switches::kIOSTestingFixedHttpsPort)) {
     globals_->testing_fixed_https_port =
         GetSwitchValueAsInt(command_line, switches::kIOSTestingFixedHttpsPort);
   }
@@ skipping 583 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;
 }