Removed static factories for data, ftp, file, and about jobs.

net/url_request/url_request_about_job.cc

Index: net/url_request/url_request_about_job.cc
diff --git a/net/url_request/url_request_about_job.cc b/net/url_request/url_request_about_job.cc
index d96f2d4b5d41d5070c9621b6fff3082299af3a8d..939f73341d7b2aec09b9756475006e451bc746a3 100644
--- a/net/url_request/url_request_about_job.cc
+++ b/net/url_request/url_request_about_job.cc
@@ -21,12 +21,6 @@ URLRequestAboutJob::URLRequestAboutJob(URLRequest* request)
       ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
 }
 
-// static
-URLRequestJob* URLRequestAboutJob::Factory(URLRequest* request,
-                                           const std::string& scheme) {
-  return new URLRequestAboutJob(request);
-}
-
 void URLRequestAboutJob::Start() {
   // Start reading asynchronously so that all error reporting and data
   // callbacks happen as they would for network requests.