Fix errors caused by unsafe conversions to/from size_t

third_party/WebKit/Source/core/fetch/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 38 matching lines @@
 public:
     using ClientType = ScriptResourceClient;
     static ResourcePtr<ScriptResource> fetch(FetchRequest&, ResourceFetcher*);
 
     // Public for testing
     ScriptResource(const ResourceRequest&, const String& charset);
 
     ~ScriptResource() override;
 
     void didAddClient(ResourceClient*) override;
-    void appendData(const char*, unsigned) override;
+    void appendData(const char*, size_t) override;
 
     void onMemoryDump(WebMemoryDumpLevelOfDetail, WebProcessMemoryDump*) const override;
 
     void destroyDecodedDataForFailedRevalidation() override;
 
     const String& script();
 
     AtomicString mimeType() const;
 
     bool mimeTypeAllowedByNosniff() const;
@@ skipping 20 matching lines @@
     IntegrityMetadataSet m_integrityMetadata;
 
     AtomicString m_script;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(Script);
 
 }
 
 #endif