Revert of Enable HTTP cleartext configuration for Webview

android_webview/browser/net/aw_url_request_context_getter.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 ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 #define ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 29 matching lines @@
 
   // net::URLRequestContextGetter implementation.
   net::URLRequestContext* GetURLRequestContext() override;
   scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
       const override;
 
   // NetLog is thread-safe, so clients can call this method from arbitrary
   // threads (UI and IO).
   net::NetLog* GetNetLog();
 
-  static void set_check_cleartext_permitted(bool permitted);
-
  private:
   friend class AwBrowserContext;
   ~AwURLRequestContextGetter() override;
 
   // Prior to GetURLRequestContext() being called, this is called to hand over
   // the objects that GetURLRequestContext() will later install into
   // |job_factory_|.  This ordering is enforced by having
   // AwBrowserContext::CreateRequestContext() call this method.
   // This method is necessary because the passed in objects are created
   // on the UI thread while |job_factory_| must be created on the IO thread.
@@ skipping 31 matching lines @@
   // SetHandlersAndInterceptors() and the first GetURLRequestContext() call.
   content::ProtocolHandlerMap protocol_handlers_;
   content::URLRequestInterceptorScopedVector request_interceptors_;
 
   DISALLOW_COPY_AND_ASSIGN(AwURLRequestContextGetter);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_