Pepper: Move FileRef to the "new" resource proxy.

ppapi/proxy/url_response_info_resource.cc

Index: ppapi/proxy/url_response_info_resource.cc
diff --git a/ppapi/proxy/url_response_info_resource.cc b/ppapi/proxy/url_response_info_resource.cc
index 85dae9a1aef485c989fa39d30a674bd805ff8515..85a4776dd89353ee7a8499a8a03dcd1a3862b4ed 100644
--- a/ppapi/proxy/url_response_info_resource.cc
+++ b/ppapi/proxy/url_response_info_resource.cc
@@ -4,7 +4,7 @@
 
 #include "ppapi/proxy/url_response_info_resource.h"
 
-#include "ppapi/proxy/ppb_file_ref_proxy.h"
+#include "ppapi/proxy/file_ref_resource.h"
 #include "ppapi/shared_impl/var.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/resource_creation_api.h"
@@ -62,8 +62,12 @@ PP_Var URLResponseInfoResource::GetProperty(PP_URLResponseProperty property) {
 }
 
 PP_Resource URLResponseInfoResource::GetBodyAsFileRef() {
-  if (!body_as_file_ref_.get())
-    return 0;
+  if (!body_as_file_ref_.get()) {
+    body_as_file_ref_ = FileRefResource::CreateFileRef(
+        connection(),
+        pp_instance(),
+        data_.body_as_file_ref);
+  }
   PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(
       body_as_file_ref_.get());
   return body_as_file_ref_.get();