Turned job_factory into a pure virtual class

content/shell/shell_url_request_context_getter.cc

Index: content/shell/shell_url_request_context_getter.cc
diff --git a/content/shell/shell_url_request_context_getter.cc b/content/shell/shell_url_request_context_getter.cc
index 06af8f7c74bfe108de9292969b8995de2e1b1675..cba69cbc50f1f08a338d05d0d940b81520361a57 100644
--- a/content/shell/shell_url_request_context_getter.cc
+++ b/content/shell/shell_url_request_context_getter.cc
@@ -21,7 +21,7 @@
 #include "net/proxy/proxy_service.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_storage.h"
-#include "net/url_request/url_request_job_factory.h"
+#include "net/url_request/url_request_job_factory_impl.h"
 
 namespace content {
 
@@ -104,7 +104,7 @@ net::URLRequestContext* ShellURLRequestContextGetter::GetURLRequestContext() {
         "" /* trusted_spdy_proxy */ );
     storage_->set_http_transaction_factory(main_cache);
 
-    storage_->set_job_factory(new net::URLRequestJobFactory);
+    storage_->set_job_factory(new net::URLRequestJobFactoryImpl);
   }
 
   return url_request_context_.get();