Remove resource type-specific fetching logic from ResourceFetcher

Source/core/fetch/XSLStyleSheetResource.cpp

Index: Source/core/fetch/XSLStyleSheetResource.cpp
diff --git a/Source/core/fetch/XSLStyleSheetResource.cpp b/Source/core/fetch/XSLStyleSheetResource.cpp
index df4062a82f466a939263a63b376935e664e3c870..972dd8af758f4751f4bdba2c13f98ed3e95051f9 100644
--- a/Source/core/fetch/XSLStyleSheetResource.cpp
+++ b/Source/core/fetch/XSLStyleSheetResource.cpp
@@ -27,13 +27,22 @@
 #include "config.h"
 #include "core/fetch/XSLStyleSheetResource.h"
 
+#include "core/fetch/FetchRequest.h"
 #include "core/fetch/ResourceClientWalker.h"
+#include "core/fetch/ResourceFetcher.h"
 #include "core/fetch/StyleSheetResourceClient.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/SharedBuffer.h"
 
 namespace blink {
 
+ResourcePtr<XSLStyleSheetResource> XSLStyleSheetResource::fetch(FetchRequest& request, ResourceFetcher* fetcher)
+{
+    ASSERT(RuntimeEnabledFeatures::xsltEnabled());
+    request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextXSLT);
+    return toXSLStyleSheetResource(fetcher->requestResource(request, XSLStyleSheetResourceFactory()));
+}
+
 XSLStyleSheetResource::XSLStyleSheetResource(const ResourceRequest& resourceRequest, const String& charset)
     : StyleSheetResource(resourceRequest, XSLStyleSheet, "text/xsl", charset)
 {