[ios Mojo] Added util function to convert WKSecurityOrigin to GURL.

ios/web/public/origin_util.cc

Index: ios/web/public/origin_util.cc
diff --git a/ios/web/public/origin_util.cc b/ios/web/public/origin_util.cc
deleted file mode 100644
index 28b39a94e18e6234f2dd6ae097eca24bd9ca0755..0000000000000000000000000000000000000000
--- a/ios/web/public/origin_util.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2015 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.
-
-#include "ios/web/public/origin_util.h"
-
-#include "net/base/url_util.h"
-#include "url/gurl.h"
-
-namespace web {
-
-bool IsOriginSecure(const GURL& url) {
-  if (url.SchemeIsCryptographic() || url.SchemeIsFile())
-    return true;
-
-  if (url.SchemeIsFileSystem() && url.inner_url() &&
-      IsOriginSecure(*url.inner_url())) {
-    return true;
-  }
-
-  std::string hostname = url.HostNoBrackets();
-  if (net::IsLocalhost(hostname))
-    return true;
-
-  return false;
-}
-
-}  // namespace web