Remove HttpStreamFactory::spdy_enabled_ static member and accessors.

chrome/browser/net/net_pref_observer.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_NET_NET_PREF_OBSERVER_H_
 #define CHROME_BROWSER_NET_NET_PREF_OBSERVER_H_
 
 #include "base/macros.h"
 #include "components/prefs/pref_member.h"
 
 class PrefService;
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // Monitors network-related preferences for changes and applies them.
 // The supplied PrefService must outlive this NetPrefObserver.
 // Must be used only on the UI thread.
 class NetPrefObserver {
  public:
   // |prefs| must be non-NULL and |*prefs| must outlive this.
   explicit NetPrefObserver(PrefService* prefs);
   virtual ~NetPrefObserver();
 
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
  private:
-  void ApplySettings();
-
-  BooleanPrefMember spdy_disabled_;
-
   DISALLOW_COPY_AND_ASSIGN(NetPrefObserver);
 };
 
 #endif  // CHROME_BROWSER_NET_NET_PREF_OBSERVER_H_