[Oilpan] [Reland] Migrate classes under core/fetch to Oilpan heap

Source/core/fetch/FetchContext.h

 /*
  * Copyright (C) 2013 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 36 matching lines @@
 class ResourceLoader;
 class ResourceResponse;
 class ResourceRequest;
 class ResourceTimingInfo;
 
 enum FetchResourceType {
     FetchMainResource,
     FetchSubresource
 };
 
-class CORE_EXPORT FetchContext : public NoBaseWillBeGarbageCollectedFinalized<FetchContext> {
+class CORE_EXPORT FetchContext : public GarbageCollectedFinalized<FetchContext> {
     WTF_MAKE_NONCOPYABLE(FetchContext);
 public:
     static FetchContext& nullInstance();
 
     virtual ~FetchContext() { }
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
     virtual bool isLiveContext() { return false; }
     virtual void countClientHintsDPR() { }
     virtual void countClientHintsResourceWidth() { }
@@ skipping 40 matching lines @@
     virtual void addCSPHeaderIfNecessary(Resource::Type, FetchRequest&);
     virtual bool isLowPriorityIframe() const { return false; }
 
 protected:
     FetchContext() { }
 };
 
 }
 
 #endif