Switch SchemeIsSecure to SchemeIsCryptographic for referrer-related code.

ios/web/public/referrer_util.cc

 // Copyright 2013 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/referrer_util.h"
 
 #include "base/logging.h"
 #include "ios/web/public/referrer.h"
 #include "url/gurl.h"
 
 namespace web {
 
 GURL ReferrerForHeader(const GURL& referrer) {
   DCHECK(referrer.is_valid());
   GURL::Replacements replacements;
   replacements.ClearUsername();
   replacements.ClearPassword();
   replacements.ClearRef();
   return referrer.ReplaceComponents(replacements);
 }
 
 std::string ReferrerHeaderValueForNavigation(
     const GURL& destination,
     const web::Referrer& referrer) {
   std::string referrer_value;
-  bool leaving_secure_scheme =
-      referrer.url.SchemeIsSecure() && !destination.SchemeIsSecure();
+  bool leaving_secure_scheme = referrer.url.SchemeIsCryptographic() &&
+                               !destination.SchemeIsCryptographic();
   if (referrer.policy == ReferrerPolicyAlways ||
       (referrer.policy == ReferrerPolicyDefault && !leaving_secure_scheme)) {
     if (referrer.url.is_valid())
       referrer_value = ReferrerForHeader(referrer.url).spec();
   } else if (referrer.policy == ReferrerPolicyOrigin) {
     referrer_value = referrer.url.GetOrigin().spec();
   } else {
     // Policy is Never, or it's Default with a secure->insecure transition, so
     // leave it empty.
   }
@@ skipping 28 matching lines @@
   if (policy == "never")
     return ReferrerPolicyNever;
   if (policy == "always")
     return ReferrerPolicyAlways;
   if (policy == "origin")
     return ReferrerPolicyOrigin;
   return web::ReferrerPolicyDefault;
 }
 
 }  // namespace web