Enable QUIC for proxies only when QUIC is enabled

ios/chrome/browser/ios_chrome_io_thread.h

 // 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.
 
 #ifndef IOS_CHROME_BROWSER_IOS_CHROME_IO_THREAD_H_
 #define IOS_CHROME_BROWSER_IOS_CHROME_IO_THREAD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 127 matching lines @@
     Optional<bool> enable_spdy31;
     Optional<bool> enable_http2;
     Optional<bool> parse_alternative_services;
     Optional<bool> enable_alternative_service_with_different_host;
 
     Optional<bool> enable_npn;
 
     Optional<bool> enable_priority_dependencies;
 
     Optional<bool> enable_quic;
-    Optional<bool> enable_quic_for_proxies;
     Optional<bool> quic_always_require_handshake_confirmation;
     Optional<bool> quic_disable_connection_pooling;
     Optional<float> quic_load_server_info_timeout_srtt_multiplier;
     Optional<bool> quic_enable_connection_racing;
     Optional<bool> quic_enable_non_blocking_io;
     Optional<bool> quic_disable_disk_cache;
     Optional<bool> quic_prefer_aes;
     Optional<int> quic_max_number_of_lossy_connections;
     Optional<float> quic_packet_loss_threshold;
     Optional<int> quic_socket_receive_buffer_size;
@@ skipping 27 matching lines @@
 
   // Clears the host cache.  Intended to be used to prevent exposing recently
   // visited sites on about:net-internals/#dns and about:dns pages.  Must be
   // called on the IO thread.
   void ClearHostCache();
 
   void InitializeNetworkSessionParams(net::HttpNetworkSession::Params* params);
 
   base::TimeTicks creation_time() const;
 
-  // Returns true if QUIC should be enabled for data reduction proxy as a result
-  // of a field trial.
-  static bool ShouldEnableQuicForDataReductionProxy();
-
  private:
   // Map from name to value for all parameters associate with a field trial.
   typedef std::map<std::string, std::string> VariationParameters;
 
   // Provide SystemURLRequestContextGetter with access to
   // InitSystemRequestContext().
   friend class SystemURLRequestContextGetter;
 
   // WebThreadDelegate implementation, runs on the IO thread.
   // This handles initialization and destruction of state that must
@@ skipping 54 matching lines @@
   // Configures QUIC options in |globals| based on the flags in |command_line|
   // as well as the QUIC field trial group and parameters.
   // Must be called before ConfigureSpdyGlobals.
   static void ConfigureQuicGlobals(base::StringPiece quic_trial_group,
                                    const VariationParameters& quic_trial_params,
                                    Globals* globals);
 
   // Returns true if QUIC should be enabled as a result of a field trial.
   static bool ShouldEnableQuic(base::StringPiece quic_trial_group);
 
-  // Returns true if QUIC should be enabled for proxies as a result of a
-  // field trial.
-  static bool ShouldEnableQuicForProxies(base::StringPiece quic_trial_group);
-
   // Returns true if QUIC should always require handshake confirmation during
   // the QUIC handshake.
   static bool ShouldQuicAlwaysRequireHandshakeConfirmation(
       const VariationParameters& quic_trial_params);
 
   // Returns true if QUIC should disable connection pooling.
   static bool ShouldQuicDisableConnectionPooling(
       const VariationParameters& quic_trial_params);
 
   // Returns the ratio of time to load QUIC sever information from disk cache to
@@ skipping 100 matching lines @@
       system_url_request_context_getter_;
 
   const base::TimeTicks creation_time_;
 
   base::WeakPtrFactory<IOSChromeIOThread> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(IOSChromeIOThread);
 };
 
 #endif  // IOS_CHROME_BROWSER_IOS_CHROME_IO_THREAD_H_