Remove resource type-specific fetching logic from ResourceFetcher

Source/core/dom/ScriptLoader.cpp

Index: Source/core/dom/ScriptLoader.cpp
diff --git a/Source/core/dom/ScriptLoader.cpp b/Source/core/dom/ScriptLoader.cpp
index c9bf19712492acd242585d032b270a2eee040e11..637376d4d2b9ea266c127700c0e17925c8669ced 100644
--- a/Source/core/dom/ScriptLoader.cpp
+++ b/Source/core/dom/ScriptLoader.cpp
@@ -297,7 +297,7 @@ bool ScriptLoader::fetchScript(const String& sourceUrl, FetchRequest::DeferOptio
             request.setContentSecurityCheck(DoNotCheckContentSecurityPolicy);
         request.setDefer(defer);
 
-        m_resource = elementDocument->fetcher()->fetchScript(request);
+        m_resource = ScriptResource::fetch(request, elementDocument->fetcher());
         m_isExternalScript = true;
     }