Add a DevTools warning for a missing subjectAltName

components/security_state/content/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 static_library("content") {
   sources = [
     "content_utils.cc",
     "content_utils.h",
   ]
 
@@ skipping 19 matching lines @@
   ]
 
   deps = [
     ":content",
     "//base",
     "//base/test:test_support",
     "//components/security_state/core",
     "//content/public/browser",
     "//content/test:test_support",
     "//net",
+    "//net:test_support",
     "//testing/gtest",
   ]
 }