Add scheme exceptions for isSecureContext

chrome/common/secure_origin_whitelist.h

 // Copyright 2015 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 CHROME_COMMON_SECURE_ORIGIN_WHITELIST_H_
 #define CHROME_COMMON_SECURE_ORIGIN_WHITELIST_H_
 
 #include <set>
 
 #include "url/gurl.h"
 
-// Returns whitelisted origins that need to be considered trustworthy.
-// The whitelist is given by kUnsafelyTreatInsecureOriginAsSecure
-// command-line option.
+// |origins| is a return value parameter that gets a whitelist of origins that
+// need to be considered trustworthy.  The whitelist is given by
+// kUnsafelyTreatInsecureOriginAsSecure command-line option.
 // See https://www.w3.org/TR/powerful-features/#is-origin-trustworthy.
 void GetSecureOriginWhitelist(std::set<GURL>* origins);
 
+// |schemes| is a return value parameter that gets a whitelist of schemes that
+// should bypass the Is Privileged Context check.
+// See http://www.w3.org/TR/powerful-features/#settings-privileged
+void GetSchemesBypassingSecureContextCheckWhitelist(
+    std::set<std::string>* schemes);
+
 #endif  // CHROME_COMMON_SECURE_ORIGIN_WHITELIST_H_