Implement script MIME restrictions for X-Content-Type-Options: nosniff for Workers

third_party/WebKit/Source/core/loader/resource/ScriptResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     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
     version 2 of the License, or (at your option) any later version.
@@ skipping 55 matching lines @@
   void didAddClient(ResourceClient*) override;
   void appendData(const char*, size_t) override;
 
   void onMemoryDump(WebMemoryDumpLevelOfDetail,
                     WebProcessMemoryDump*) const override;
 
   void destroyDecodedDataForFailedRevalidation() override;
 
   const String& script();
 
-  bool mimeTypeAllowedByNosniff() const;
+  static bool mimeTypeAllowedByNosniff(const ResourceResponse&);
 
  private:
   class ScriptResourceFactory : public ResourceFactory {
    public:
     ScriptResourceFactory() : ResourceFactory(Resource::Script) {}
 
     Resource* create(const ResourceRequest& request,
                      const ResourceLoaderOptions& options,
                      const String& charset) const override {
       return new ScriptResource(request, options, charset);
     }
   };
 
   ScriptResource(const ResourceRequest&,
                  const ResourceLoaderOptions&,
                  const String& charset);
 
   AtomicString m_script;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(Script);
 
 }  // namespace blink
 
 #endif