Revert of Add <link rel=preload> onload support for scripts and styles

third_party/WebKit/Source/core/loader/LinkPreloadResourceClients.h

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef LinkPreloadResourceClients_h
-#define LinkPreloadResourceClients_h
-
-#include "core/fetch/CSSStyleSheetResource.h"
-#include "core/fetch/FontResource.h"
-#include "core/fetch/ImageResourceClient.h"
-#include "core/fetch/ResourceOwner.h"
-#include "core/fetch/ScriptResource.h"
-#include "core/fetch/StyleSheetResourceClient.h"
-
-namespace blink {
-
-class LinkLoader;
-
-class LinkPreloadResourceClient : public NoBaseWillBeGarbageCollectedFinalized<LinkPreloadResourceClient> {
-public:
-    virtual ~LinkPreloadResourceClient() { }
-
-    void triggerEvents(const Resource*) const;
-
-protected:
-    LinkPreloadResourceClient(LinkLoader* loader)
-        : m_loader(loader)
-    {
-        ASSERT(loader);
-    }
-
-private:
-    LinkLoader* m_loader;
-};
-
-class LinkPreloadScriptResourceClient: public LinkPreloadResourceClient, public ResourceOwner<ScriptResource, ScriptResourceClient> {
-public:
-    static PassOwnPtr<LinkPreloadScriptResourceClient> create(LinkLoader* loader, ScriptResource* resource)
-    {
-        return adoptPtr(new LinkPreloadScriptResourceClient(loader, resource));
-    }
-
-    virtual String debugName() const { return "LinkPreloadScript"; }
-
-    void notifyFinished(Resource* resource) override
-    {
-        ASSERT(this->resource() == resource);
-        triggerEvents(resource);
-    }
-
-private:
-    LinkPreloadScriptResourceClient(LinkLoader* loader, ScriptResource* resource)
-        : LinkPreloadResourceClient(loader)
-    {
-        setResource(resource);
-    }
-};
-
-class LinkPreloadStyleResourceClient: public LinkPreloadResourceClient, public ResourceOwner<CSSStyleSheetResource, StyleSheetResourceClient> {
-public:
-    static PassOwnPtr<LinkPreloadStyleResourceClient> create(LinkLoader* loader, CSSStyleSheetResource* resource)
-    {
-        return adoptPtr(new LinkPreloadStyleResourceClient(loader, resource));
-    }
-
-    virtual String debugName() const { return "LinkPreloadStyle"; }
-
-    void setCSSStyleSheet(const String&, const KURL&, const String&, const CSSStyleSheetResource* resource) override
-    {
-        ASSERT(this->resource() == resource);
-        triggerEvents(static_cast<const Resource*>(resource));
-    }
-
-private:
-    LinkPreloadStyleResourceClient(LinkLoader* loader, CSSStyleSheetResource* resource)
-        : LinkPreloadResourceClient(loader)
-    {
-        setResource(resource);
-    }
-};
-
-}
-
-#endif // LinkPreloadResourceClients_h