Pass file task runner to net::URLRequestContextBuilder

remoting/base/url_request_context_getter.h

 // Copyright 2014 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 REMOTING_BASE_URL_REQUEST_CONTEXT_GETTER_H_
 #define REMOTING_BASE_URL_REQUEST_CONTEXT_GETTER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/url_request/url_request_context_getter.h"
@@ skipping 17 matching lines @@
   // Overridden from net::URLRequestContextGetter:
   net::URLRequestContext* GetURLRequestContext() override;
   scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
       const override;
 
  protected:
   ~URLRequestContextGetter() override;
 
  private:
   scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
   scoped_ptr<net::ProxyConfigService> proxy_config_service_;
   scoped_ptr<net::URLRequestContext> url_request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextGetter);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_URL_REQUEST_CONTEXT_GETTER_H_