Implement upgrade-insecure-requests in browser for frame requests

content/common/content_security_policy/csp_directive.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_CSP_DIRECTIVE_
 #define CONTENT_COMMON_CONTENT_SECURITY_POLICY_CSP_DIRECTIVE_
 
 #include <string>
 #include "content/common/content_export.h"
 #include "content/common/content_security_policy/csp_source_list.h"
 
 namespace content {
 
 // CSPDirective contains a set of allowed sources for a given Content Security
 // Policy directive.
 //
 // For example, the Content Security Policy `default-src img.cdn.com
 // example.com` would produce a CSPDirective object whose 'name' is
 // 'DefaultSrc', and whose 'source_list' contains two CSPSourceExpressions
 // representing 'img.cdn.com' and 'example.com' respectively.
 //
 // https://w3c.github.io/webappsec-csp/#framework-directives
 struct CONTENT_EXPORT CSPDirective {
   enum Name {
     DefaultSrc,
     ChildSrc,
     FrameSrc,
     FormAction,
+    UpgradeInsecureRequests,
 
     Unknown,
     NameLast = Unknown,
   };
 
   static std::string NameToString(Name name);
   static Name StringToName(const std::string& name);
 
   CSPDirective();
   CSPDirective(Name name, const CSPSourceList& source_list);
   CSPDirective(const CSPDirective&);
 
   Name name;
   CSPSourceList source_list;
 
   std::string ToString() const;
 };
 
 }  // namespace content
 #endif  // CONTENT_COMMON_CONTENT_SECURITY_POLICY_CSP_DIRECTIVE_