Implement upgrade-insecure-requests in browser for frame requests

content/common/content_security_policy/content_security_policy.h

 // Copyright 2017 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.
 
 #ifndef CONTENT_COMMON_CONTENT_SECURITY_POLICY_CONTENT_SECURITY_POLICY_H_
 #define CONTENT_COMMON_CONTENT_SECURITY_POLICY_CONTENT_SECURITY_POLICY_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 27 matching lines @@
 
   // Return true when the |policy| allows a request to the |url| in relation to
   // the |directive| for a given |context|.
   // Note: Any policy violation are reported to the |context|.
   static bool Allow(const ContentSecurityPolicy& policy,
                     CSPDirective::Name directive,
                     const GURL& url,
                     bool is_redirect,
                     CSPContext* context,
                     const SourceLocation& source_location);
+
+  // Returns true if |policy| specifies that an insecure HTTP request should be
+  // upgraded to HTTPS.
+  static bool ShouldUpgradeInsecureRequest(const ContentSecurityPolicy& policy);
 };
 
 }  // namespace content
 #endif  // CONTENT_COMMON_CONTENT_SECURITY_POLICY_CONTENT_SECURITY_POLICY_H_