Remove the ENABLE_NOSNIFF compile-time flag.

Source/WebCore/dom/ScriptElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 276 matching lines @@
 
     if (sourceCode.isEmpty())
         return;
 
     if (!m_element->document()->contentSecurityPolicy()->allowScriptNonce(m_element->fastGetAttribute(HTMLNames::nonceAttr), m_element->document()->url(), m_startLineNumber))
         return;
 
     if (!m_isExternalScript && !m_element->document()->contentSecurityPolicy()->allowInlineScript(m_element->document()->url(), m_startLineNumber))
         return;
 
-#if ENABLE(NOSNIFF)
     if (m_isExternalScript && m_cachedScript && !m_cachedScript->mimeTypeAllowedByNosniff()) {
         m_element->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Refused to execute script from '" + m_cachedScript->url().elidedString() + "' because its MIME type ('" + m_cachedScript->mimeType() + "') is not executable, and strict MIME type checking is enabled.");
         return;
     }
-#endif
 
     RefPtr<Document> document = m_element->document();
     ASSERT(document);
     if (Frame* frame = document->frame()) {
         {
             IgnoreDestructiveWriteCountIncrementer ignoreDesctructiveWriteCountIncrementer(m_isExternalScript ? document.get() : 0);
             // Create a script from the script element node, using the script
             // block's source and the script block's type.
             // Note: This is where the script is compiled and actually executed.
             frame->script()->evaluate(sourceCode);
@@ skipping 108 matching lines @@
 
 #if ENABLE(SVG)
     if (element->isSVGElement() && element->hasTagName(SVGNames::scriptTag))
         return static_cast<SVGScriptElement*>(element);
 #endif
 
     return 0;
 }
 
 }