Move bool enable_brotli from HttpNetworkSession::Params

chrome/browser/io_thread.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 CHROME_BROWSER_IO_THREAD_H_
 #define CHROME_BROWSER_IO_THREAD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 165 matching lines @@
         extension_event_router_forwarder;
 #endif
     std::unique_ptr<net::HostMappingRules> host_mapping_rules;
     std::unique_ptr<net::HttpUserAgentSettings> http_user_agent_settings;
     std::unique_ptr<net::NetworkQualityEstimator> network_quality_estimator;
 
     // NetErrorTabHelper uses |dns_probe_service| to send DNS probes when a
     // main frame load fails with a DNS error in order to provide more useful
     // information to the renderer so it can show a more specific error page.
     std::unique_ptr<chrome_browser_net::DnsProbeService> dns_probe_service;
+
+    // Enables Brotli Content-Encoding support
+    bool enable_brotli;
   };
 
   // Helper class to configure HttpNetworkSession::Params and
   // HttpServerProperties based on field trials, policy, and command line.
   class NetworkSessionConfigurator {
    public:
     // Configure |params| based on field trials and policy arguments.
     static void ParseFieldTrials(bool is_spdy_allowed_by_policy,
                                  bool is_quic_allowed_by_policy,
                                  net::HttpNetworkSession::Params* params);
@@ skipping 377 matching lines @@
   // Callback for updating data use prefs which needs to be initialized on UI
   // thread and passed to |ChromeNetworkDelegate|.
   metrics::UpdateUsagePrefCallbackType metrics_data_use_forwarder_;
 
   base::WeakPtrFactory<IOThread> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_