Extra browser-side validation of transferred_request_child_id / request_id.

content/browser/loader/resource_dispatcher_host_impl.h

Index: content/browser/loader/resource_dispatcher_host_impl.h
diff --git a/content/browser/loader/resource_dispatcher_host_impl.h b/content/browser/loader/resource_dispatcher_host_impl.h
index 56e6bb64cdbdf6285295152c313ba900fe3420ae..c7cd2d9aff2e41ad3a2db2321a9bad9dd5d63906 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.h
+++ b/content/browser/loader/resource_dispatcher_host_impl.h
@@ -549,6 +549,12 @@ class CONTENT_EXPORT ResourceDispatcherHostImpl
                                 const ResourceRequest& request_data,
                                 LoaderMap::iterator iter);
 
+  // If |request_data| is for a request being transferred from another process,
+  // then CompleteTransfer method can be used to complete the transfer.
+  void CompleteTransfer(int request_id,
+                        const ResourceRequest& request_data,
+                        int route_id);
+
   void BeginRequest(
       int request_id,
       const ResourceRequest& request_data,