Implement upgrade-insecure-requests in browser for frame requests

content/common/content_security_policy/content_security_policy.h

Index: content/common/content_security_policy/content_security_policy.h
diff --git a/content/common/content_security_policy/content_security_policy.h b/content/common/content_security_policy/content_security_policy.h
index d4de523703304c59763048721bc976b0d46352fc..d531b4c72adac0c615bb399622c4512ae13c11d1 100644
--- a/content/common/content_security_policy/content_security_policy.h
+++ b/content/common/content_security_policy/content_security_policy.h
@@ -45,6 +45,10 @@ struct CONTENT_EXPORT ContentSecurityPolicy {
                     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