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

Source/core/dom/ScriptExecutionContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 Google 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
@@ skipping 51 matching lines @@
 
     virtual bool isJSExecutionForbidden() const = 0;
 
     const KURL& url() const { return virtualURL(); }
     KURL completeURL(const String& url) const { return virtualCompleteURL(url); }
 
     virtual String userAgent(const KURL&) const = 0;
 
     virtual void disableEval(const String& errorMessage) = 0;
 
-    bool sanitizeScriptError(String& errorMessage, int& lineNumber, int& columnNumber, String& sourceURL, CachedScript* = 0);
-    void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, PassRefPtr<ScriptCallStack>, CachedScript* = 0);
+    bool sanitizeScriptError(String& errorMessage, int& lineNumber, int& columnNumber, String& sourceURL);
+    void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, PassRefPtr<ScriptCallStack>);
 
     void addConsoleMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, ScriptState* = 0, unsigned long requestIdentifier = 0);
     virtual void addConsoleMessage(MessageSource, MessageLevel, const String& message, unsigned long requestIdentifier = 0) = 0;
 
     PublicURLManager& publicURLManager();
 
     // Active objects are not garbage collected even if inaccessible, e.g. because their activity may result in callbacks being invoked.
     bool canSuspendActiveDOMObjects();
     bool hasPendingActivity();
 
@@ skipping 35 matching lines @@
     // Gets the next id in a circular sequence from 1 to 2^31-1.
     int circularSequentialID();
 
     void didChangeTimerAlignmentInterval();
     virtual double timerAlignmentInterval() const;
 
     virtual EventQueue* eventQueue() const = 0;
 
     void setDatabaseContext(DatabaseContext*);
 
+    void didLoadScriptThatPassedAccessControlCheck(const KURL&);
+    bool scriptPassedAccessControlCheck(const KURL&) const;
+
 protected:
     class AddConsoleMessageTask : public Task {
     public:
         static PassOwnPtr<AddConsoleMessageTask> create(MessageSource source, MessageLevel level, const String& message)
         {
             return adoptPtr(new AddConsoleMessageTask(source, level, message));
         }
         virtual void performTask(ScriptExecutionContext*);
     private:
         AddConsoleMessageTask(MessageSource source, MessageLevel level, const String& message)
@@ skipping 11 matching lines @@
 
 private:
     friend class DOMTimer; // For installNewTimeout() and removeTimeoutByID() below.
 
     virtual const KURL& virtualURL() const = 0;
     virtual KURL virtualCompleteURL(const String&) const = 0;
 
     virtual void addMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, PassRefPtr<ScriptCallStack>, ScriptState* = 0, unsigned long requestIdentifier = 0) = 0;
     virtual EventTarget* errorEventTarget() = 0;
     virtual void logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtr<ScriptCallStack>) = 0;
-    bool dispatchErrorEvent(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, CachedScript*);
+    bool dispatchErrorEvent(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL);
 
     void closeMessagePorts();
 
     virtual void refScriptExecutionContext() = 0;
     virtual void derefScriptExecutionContext() = 0;
     virtual PassOwnPtr<LifecycleNotifier> createLifecycleNotifier() OVERRIDE;
 
     // Implementation details for DOMTimer. No other classes should call these functions.
     int installNewTimeout(DOMTimer::Type, PassOwnPtr<ScheduledAction>, int timeout);
     bool removeTimeoutByIDIfTypeMatches(DOMTimer::Type, int timeoutID); // This makes underlying DOMTimer instance destructed. Returns true if removed.
 
     HashSet<MessagePort*> m_messagePorts;
 
+    HashSet<unsigned> m_scriptsPassingAccessControlCheck;
+
     int m_circularSequentialID;
     typedef HashMap<int, OwnPtr<DOMTimer> > TimeoutMap;
     TimeoutMap m_timeouts;
 
     bool m_inDispatchErrorEvent;
     class PendingException;
     OwnPtr<Vector<OwnPtr<PendingException> > > m_pendingExceptions;
 
     bool m_activeDOMObjectsAreSuspended;
     ActiveDOMObject::ReasonForSuspension m_reasonForSuspendingActiveDOMObjects;
     bool m_activeDOMObjectsAreStopped;
 
     OwnPtr<PublicURLManager> m_publicURLManager;
 
     RefPtr<DatabaseContext> m_databaseContext;
 
     // The location of this member is important; to make sure contextDestroyed() notification on
     // ScriptExecutionContext's members (notably m_timeouts) is called before they are destructed,
     // m_lifecycleNotifer should be placed *after* such members.
     OwnPtr<ContextLifecycleNotifier> m_lifecycleNotifier;
 };
 
 } // namespace WebCore
 
 #endif // ScriptExecutionContext_h