Convert SecurityError exceptions to 'es.throwSecurityError()'.

Source/core/page/EventSource.cpp

 /*
  * Copyright (C) 2009, 2012 Ericsson AB. All rights reserved.
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011, Code Aurora Forum. 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
@@ skipping 74 matching lines @@
         return 0;
     }
 
     // FIXME: Convert this to check the isolated world's Content Security Policy once webkit.org/b/104520 is solved.
     bool shouldBypassMainWorldContentSecurityPolicy = false;
     if (context->isDocument()) {
         Document* document = toDocument(context);
         shouldBypassMainWorldContentSecurityPolicy = document->frame()->script()->shouldBypassMainWorldContentSecurityPolicy();
     }
     if (!shouldBypassMainWorldContentSecurityPolicy && !context->contentSecurityPolicy()->allowConnectToSource(fullURL)) {
-        es.throwDOMException(SecurityError, "Refused to connect to '" + fullURL.elidedString() + "' because it violates the document's Content Security Policy.");
+        // We can safely expose the URL to JavaScript, as this exception is generate synchronously before any redirects take place.
+        es.throwSecurityError("Refused to connect to '" + fullURL.elidedString() + "' because it violates the document's Content Security Policy.");
         return 0;
     }
 
     RefPtr<EventSource> source = adoptRef(new EventSource(context, fullURL, eventSourceInit));
 
     source->setPendingActivity(source.get());
     source->connect();
     source->suspendIfNeeded();
 
     return source.release();
@@ skipping 318 matching lines @@
 {
     return &m_eventTargetData;
 }
 
 EventTargetData* EventSource::ensureEventTargetData()
 {
     return &m_eventTargetData;
 }
 
 } // namespace WebCore