Assume Resource is always non-null in external classic script

third_party/WebKit/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
@@ skipping 717 matching lines @@
         UseCounter::count(frame, UseCounter::BlockedSniffingCSVToScript);
       return false;
     }
 
     logScriptMIMEType(frame, resource, mimeType);
   }
 
   AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
   if (!m_isExternalScript) {
     accessControlStatus = SharableCrossOrigin;
-  } else if (sourceCode.resource()) {
+  } else {
+    CHECK(sourceCode.resource());
     accessControlStatus = sourceCode.resource()->calculateAccessControlStatus(
         m_element->document().getSecurityOrigin());
   }
 
   const bool isImportedScript = contextDocument != elementDocument;
 
   // 3. "If the script is from an external file,
   //     or the script's type is module",
   //     then increment the ignore-destructive-writes counter of the
   //     script element's node document. Let neutralized doc be that Document."
@@ skipping 114 matching lines @@
   //     then abort these steps at this point. The script is not executed.
   return equalIgnoringCase(eventAttribute, "onload") ||
          equalIgnoringCase(eventAttribute, "onload()");
 }
 
 String ScriptLoader::scriptContent() const {
   return m_element->textFromChildren();
 }
 
 }  // namespace blink