Remove resource type-specific fetching logic from ResourceFetcher

Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 6503 matching lines @@
     webViewHelper.initializeAndLoad(m_baseURL + "link-manifest-change.html", true, &webFrameClient);
 
     EXPECT_EQ(14, webFrameClient.manifestChangeCount());
 }
 
 static ResourcePtr<Resource> fetchManifest(Document* document, const KURL& url)
 {
     FetchRequest fetchRequest = FetchRequest(ResourceRequest(url), FetchInitiatorInfo());
     fetchRequest.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextManifest);
 
-    return document->fetcher()->fetchSynchronously(fetchRequest);
+    return RawResource::fetchSynchronously(fetchRequest, document->fetcher());
 }
 
 TEST_P(ParametrizedWebFrameTest, ManifestFetch)
 {
     registerMockedHttpURLLoad("foo.html");
     registerMockedHttpURLLoad("link-manifest-fetch.json");
 
     FrameTestHelpers::WebViewHelper webViewHelper(this);
     webViewHelper.initializeAndLoad(m_baseURL + "foo.html");
     Document* document = toWebLocalFrameImpl(webViewHelper.webViewImpl()->mainFrame())->frame()->document();
@@ skipping 896 matching lines @@
 
     EXPECT_EQ(parent, firstFrame->parent());
     EXPECT_EQ(parent, secondFrame->parent());
     EXPECT_EQ(parent, thirdFrame->parent());
     EXPECT_EQ(parent, fourthFrame->parent());
 
     view->close();
 }
 
 } // namespace blink