Drop unused member loader_ in testing file SimRequest.h

third_party/WebKit/Source/core/testing/sim/SimRequest.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 SimRequest_h
 #define SimRequest_h
 
 #include "platform/wtf/text/WTFString.h"
 #include "public/platform/WebURLError.h"
 #include "public/platform/WebURLResponse.h"
 
 namespace blink {
 
 class SimNetwork;
-class WebURLLoader;
 class WebURLLoaderClient;
 
 // Simulates a single request for a resource from the server. Requires a
 // SimNetwork to have been created first. Use the start(), write() and finish()
 // methods to simulate the response from the server. Note that all started
 // requests must be finished.
 class SimRequest final {
  public:
   SimRequest(String url, String mime_type);
   ~SimRequest();
@@ skipping 18 matching lines @@
  private:
   friend class SimNetwork;
 
   void Reset();
 
   // Used by SimNetwork.
   void DidReceiveResponse(WebURLLoaderClient*, const WebURLResponse&);
   void DidFail(const WebURLError&);
 
   String url_;
-  WebURLLoader* loader_;
   WebURLResponse response_;
   WebURLError error_;
   WebURLLoaderClient* client_;
   unsigned total_encoded_data_length_;
   bool is_ready_;
 };
 
 }  // namespace blink
 
 #endif