WTF: Support enums in DefaultHash and HashTraits by casting to integral types.

third_party/WebKit/Source/platform/weborigin/SchemeRegistry.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 333 matching lines @@
 
 bool SchemeRegistry::schemeShouldBypassContentSecurityPolicy(
     const String& scheme,
     PolicyAreas policyAreas) {
   ASSERT(policyAreas != PolicyAreaNone);
   if (scheme.isEmpty() || policyAreas == PolicyAreaNone)
     return false;
 
   // get() returns 0 (PolicyAreaNone) if there is no entry in the map.
   // Thus by default, schemes do not bypass CSP.
-  return (getURLSchemesRegistry().contentSecurityPolicyBypassingSchemes.get(
-              scheme) &
-          policyAreas) == policyAreas;
+  const auto& schemes =
+      getURLSchemesRegistry().contentSecurityPolicyBypassingSchemes;
+  auto it = schemes.find(scheme);
+  PolicyAreas allowedPolicyAreas =
+      (it == schemes.end() ? PolicyAreaNone : it->value);
+  return !(policyAreas & ~allowedPolicyAreas);
 }
 
 void SchemeRegistry::registerURLSchemeBypassingSecureContextCheck(
     const String& scheme) {
   DCHECK_EQ(scheme, scheme.lower());
   getMutableURLSchemesRegistry().secureContextBypassingSchemes.insert(scheme);
 }
 
 bool SchemeRegistry::schemeShouldBypassSecureContextCheck(
     const String& scheme) {
   if (scheme.isEmpty())
     return false;
   DCHECK_EQ(scheme, scheme.lower());
   return getURLSchemesRegistry().secureContextBypassingSchemes.contains(scheme);
 }
 
 }  // namespace blink