Allow sites to enable 'window.onerror' handlers for cross-domain scripts.

Source/core/loader/CrossOriginAccessControl.h

 /*
  * Copyright (C) 2008 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 22 matching lines @@
 #include "wtf/HashSet.h"
 
 namespace WebCore {
 
 typedef HashSet<String, CaseFoldingHash> HTTPHeaderSet;
 
 class HTTPHeaderMap;
 class ResourceResponse;
 class SecurityOrigin;
 
+enum ScriptAccessControlCheckStatus {
+    ScriptIsNotSharedCrossOrigin,
+    ScriptIsSharedCrossOrigin
+};

[abarth-chromium, 2013/08/05 22:31:45]

Is this the right place for this enum?  It's a bid odd that this general header
knows things about scripts specifically.  Maybe we should just use a more
generic name:

enum AccessControlStatus {
  NotSharableCrossOrigin,
  SharableCrossOrigin,
};

?

[Mike West, 2013/08/06 07:54:03]

I like it. Done.

+
 bool isSimpleCrossOriginAccessRequest(const String& method, const HTTPHeaderMap&);
 bool isOnAccessControlSimpleRequestMethodWhitelist(const String&);
 bool isOnAccessControlSimpleRequestHeaderWhitelist(const String& name, const String& value);
 bool isOnAccessControlResponseHeaderWhitelist(const String&);
 
 void updateRequestForAccessControl(ResourceRequest&, SecurityOrigin*, StoredCredentials);
 ResourceRequest createAccessControlPreflightRequest(const ResourceRequest&, SecurityOrigin*);
 
 bool passesAccessControlCheck(const ResourceResponse&, StoredCredentials, SecurityOrigin*, String& errorDescription);
 void parseAccessControlExposeHeadersAllowList(const String& headerValue, HTTPHeaderSet&);
 
 } // namespace WebCore
 
 #endif // CrossOriginAccessControl_h