Remove the public_deps to fileutils from test_support.

Bug: webrtc:8946
Change-Id: Ia01d8bb1b42485e29f26792b9266228743d7fd90
No-Presubmit: true
Reviewed-on: https://webrtc-review.googlesource.com/62100
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22465}
diff --git a/video/BUILD.gn b/video/BUILD.gn
index fc2a750..35d9ffe 100644
--- a/video/BUILD.gn
+++ b/video/BUILD.gn
@@ -124,6 +124,7 @@
       "../rtc_base:rtc_base_approved",
       "../rtc_base:rtc_base_tests_utils",
       "../system_wrappers",
+      "../test:fileutils",
       "../test:perf_test",
       "../test:rtp_test_utils",
       "../test:test_common",
@@ -357,6 +358,7 @@
       "../system_wrappers:metrics_default",
       "../test:direct_transport",
       "../test:field_trial",
+      "../test:fileutils",
       "../test:perf_test",
       "../test:rtp_test_utils",
       "../test:test_common",