Give URLRequestJob::GetResponseCode a better default implementation.

net/test/url_request/url_request_mock_http_job.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.
 //
 // A URLRequestJob class that pulls the net and http headers from disk.
 
 #ifndef NET_TEST_URL_REQUEST_URL_REQUEST_MOCK_HTTP_JOB_H_
 #define NET_TEST_URL_REQUEST_URL_REQUEST_MOCK_HTTP_JOB_H_
 
 #include <stdint.h>
@@ skipping 22 matching lines @@
   // Note that all file IO is done using |worker_pool|.
   URLRequestMockHTTPJob(URLRequest* request,
                         NetworkDelegate* network_delegate,
                         const base::FilePath& file_path,
                         const scoped_refptr<base::TaskRunner>& task_runner);
 
   // URLRequestJob overrides.
   void Start() override;
   int64_t GetTotalReceivedBytes() const override;
   bool GetMimeType(std::string* mime_type) const override;
-  int GetResponseCode() const override;
   bool GetCharset(std::string* charset) override;
   void GetResponseInfo(HttpResponseInfo* info) override;
   bool IsRedirectResponse(GURL* location, int* http_status_code) override;
 
   // URLRequestFileJob overridess.
   void OnReadComplete(net::IOBuffer* buffer, int result) override;
 
   // Adds the testing URLs to the URLRequestFilter, both under HTTP and HTTPS.
   static void AddUrlHandlers(
       const base::FilePath& base_path,
@@ skipping 31 matching lines @@
   const scoped_refptr<base::TaskRunner> task_runner_;
 
   base::WeakPtrFactory<URLRequestMockHTTPJob> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestMockHTTPJob);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_URL_REQUEST_URL_REQUEST_MOCK_HTTP_JOB_H_