Remove resource type-specific fetching logic from ResourceFetcher

Source/core/fetch/RawResource.h

Index: Source/core/fetch/RawResource.h
diff --git a/Source/core/fetch/RawResource.h b/Source/core/fetch/RawResource.h
index f354a5cb6add5103fb2633bb9cdbde17079ed429..62da51c48cc38a0e8b08402e099750bb5c5d69b3 100644
--- a/Source/core/fetch/RawResource.h
+++ b/Source/core/fetch/RawResource.h
@@ -30,12 +30,23 @@
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
+class FetchRequest;
 class RawResourceClient;
+class ResourceFetcher;
+class SubstituteData;
 
 class CORE_EXPORT RawResource final : public Resource {
 public:
     typedef RawResourceClient ClientType;
 
+    static ResourcePtr<Resource> fetchSynchronously(FetchRequest&, ResourceFetcher*);
+    static ResourcePtr<RawResource> fetch(FetchRequest&, ResourceFetcher*);
+    static ResourcePtr<RawResource> fetchMainResource(FetchRequest&, ResourceFetcher*, const SubstituteData&);
+    static ResourcePtr<RawResource> fetchImport(FetchRequest&, ResourceFetcher*);
+    static ResourcePtr<RawResource> fetchMedia(FetchRequest&, ResourceFetcher*);
+    static ResourcePtr<RawResource> fetchTextTrack(FetchRequest&, ResourceFetcher*);
+
+    // Exposed for testing
     RawResource(const ResourceRequest&, Type);
 
     // FIXME: AssociatedURLLoader shouldn't be a DocumentThreadableLoader and therefore shouldn't
@@ -46,6 +57,18 @@ public:
     bool canReuse(const ResourceRequest&) const override;
 
 private:
+    class RawResourceFactory : public ResourceFactory {
+    public:
+        RawResourceFactory(Resource::Type type)
+            : ResourceFactory(type) { }
+
+        Resource* create(const ResourceRequest& request, const String& charset) const override
+        {
+            return new RawResource(request, m_type);
+        }
+    };
+    static void preCacheSubstituteDataForMainResource(const FetchRequest&, ResourceFetcher*, const SubstituteData&);
+
     void didAddClient(ResourceClient*) override;
     void appendData(const char*, unsigned) override;