Add dependency to fix compilation

http://crrev.com/9278aca introduced an include for url/mojom/origin.mojom.h.
This CL adds the necessary build dependency.

TBR=kinuko@chromium.org

Bug: 860403
Change-Id: Ic0300665fc97b4f1416d0f6fee04528fc17eb654
Reviewed-on: https://chromium-review.googlesource.com/c/1409015
Reviewed-by: Dominic Battré <battre@chromium.org>
Commit-Queue: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622435}
diff --git a/services/network/public/cpp/BUILD.gn b/services/network/public/cpp/BUILD.gn
index e67fd15..80b4432 100644
--- a/services/network/public/cpp/BUILD.gn
+++ b/services/network/public/cpp/BUILD.gn
@@ -142,6 +142,7 @@
     "//services/network/public/mojom:mutable_network_traffic_annotation_interface",
     "//url/ipc:url_ipc",
     "//url/mojom:url_mojom_gurl",
+    "//url/mojom:url_mojom_origin",
   ]
   deps = [
     "//base",