Remove URLRequestJob::GetResponseCode implementations.

headless/public/util/url_fetcher.cc

Index: headless/public/util/url_fetcher.cc
diff --git a/headless/public/util/url_fetcher.cc b/headless/public/util/url_fetcher.cc
index 8d8d33fc239a0a0c5026a859b96835304bea059d..70256e6ae9043987c8ed766ce5a95de5b99790b4 100644
--- a/headless/public/util/url_fetcher.cc
+++ b/headless/public/util/url_fetcher.cc
@@ -14,7 +14,6 @@ namespace headless {
 
 void URLFetcher::ResultListener::OnFetchCompleteExtractHeaders(
     const GURL& final_url,
-    int http_response_code,
     const char* response_data,
     size_t response_data_size) {
   size_t read_offset = 0;
@@ -32,7 +31,7 @@ void URLFetcher::ResultListener::OnFetchCompleteExtractHeaders(
   }
 
   CHECK_LE(read_offset, response_data_size);
-  OnFetchComplete(final_url, http_response_code, std::move(response_headers),
+  OnFetchComplete(final_url, std::move(response_headers),
                   response_data + read_offset,
                   response_data_size - read_offset);
 }