Switch SchemeIsSecure to SchemeIsCryptographic for referrer-related code.

components/sessions/ios/ios_serialized_navigation_driver.cc

 // Copyright 2014 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 "components/sessions/ios/ios_serialized_navigation_driver.h"
 
 #include "base/memory/singleton.h"
 #include "components/sessions/serialized_navigation_entry.h"
 #include "ios/web/public/referrer.h"
 
@@ skipping 80 matching lines @@
       static_cast<web::ReferrerPolicy>(navigation->referrer_policy_));
 
   if (!navigation->virtual_url_.SchemeIsHTTPOrHTTPS() ||
       !referrer.url.SchemeIsHTTPOrHTTPS()) {
     referrer.url = GURL();
   } else {
     if (referrer.policy < 0 || referrer.policy > web::ReferrerPolicyLast) {
       NOTREACHED();
       referrer.policy = web::ReferrerPolicyNever;
     }
-    bool is_downgrade = referrer.url.SchemeIsSecure() &&
-                        !navigation->virtual_url_.SchemeIsSecure();
+    bool is_downgrade = referrer.url.SchemeIsCryptographic() &&
+                        !navigation->virtual_url_.SchemeIsCryptographic();
     switch (referrer.policy) {
       case web::ReferrerPolicyDefault:
         if (is_downgrade)
           referrer.url = GURL();
         break;
       case web::ReferrerPolicyNoReferrerWhenDowngrade:
         if (is_downgrade)
           referrer.url = GURL();
       case web::ReferrerPolicyAlways:
         break;
@@ skipping 16 matching lines @@
     navigation->referrer_policy_ = GetDefaultReferrerPolicy();
   }
 }
 
 std::string IOSSerializedNavigationDriver::StripReferrerFromPageState(
       const std::string& page_state) const {
   return std::string();
 }
 
 }  // namespace sessions