Basic console error messages for subresource integrity.

Source/core/dom/ScriptLoader.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 306 matching lines @@
     if (!m_isExternalScript && (!shouldBypassMainWorldCSP && !csp->allowInlineScript(elementDocument->url(), m_startLineNumber)))
         return;
 
     if (m_isExternalScript) {
         ScriptResource* resource = m_resource ? m_resource.get() : sourceCode.resource();
         if (resource && !resource->mimeTypeAllowedByNosniff()) {
             contextDocument->addConsoleMessage(ConsoleMessage::create(SecurityMessageSource, ErrorMessageLevel, "Refused to execute script from '" + resource->url().elidedString() + "' because its MIME type ('" + resource->mimeType() + "') is not executable, and strict MIME type checking is enabled."));
             return;
         }
 
-        // FIXME: On failure, SRI should probably provide an error message for the console.
         if (!SubresourceIntegrity::CheckSubresourceIntegrity(*m_element, sourceCode.source(), sourceCode.resource()->url()))
             return;
     }
 
     // FIXME: Can this be moved earlier in the function?
     // Why are we ever attempting to execute scripts without a frame?
     if (!frame)
         return;
 
     const bool isImportedScript = contextDocument != elementDocument;
@@ skipping 113 matching lines @@
     if (isHTMLScriptLoader(element))
         return toHTMLScriptElement(element)->loader();
 
     if (isSVGScriptLoader(element))
         return toSVGScriptElement(element)->loader();
 
     return 0;
 }
 
 }