Add header pointer to BeforeProxyHeadersSentCallback

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
diff --git a/net/url_request/url_request_http_job.h b/net/url_request/url_request_http_job.h
index b0a19b3bcc70fd0203605df1af65c62168704f02..6f8dcccb38f2392565fe4a296c3a6f438c613be4 100644
--- a/net/url_request/url_request_http_job.h
+++ b/net/url_request/url_request_http_job.h
@@ -23,6 +23,7 @@
 
 namespace net {
 
+class HttpRequestHeaders;
 class HttpResponseHeaders;
 class HttpResponseInfo;
 class HttpTransaction;
@@ -91,7 +92,9 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   void OnStartCompleted(int result);
   void OnReadCompleted(int result);
   void NotifyBeforeSendHeadersCallback(int result);
-  void NotifyBeforeSendProxyHeadersCallback(const ProxyInfo& proxy_info);
+  void NotifyBeforeSendProxyHeadersCallback(
+      const ProxyInfo& proxy_info,
+      HttpRequestHeaders* request_headers);
 
   void RestartTransactionWithAuth(const AuthCredentials& credentials);