Clean up font loading

third_party/WebKit/Source/core/css/FontLoader.h

-// Copyright 2014 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 FontLoader_h
-#define FontLoader_h
-
-#include "core/fetch/ResourceLoader.h"
-#include "platform/Timer.h"
-#include "platform/heap/Handle.h"
-#include "wtf/Vector.h"
-
-namespace blink {
-
-class CSSFontSelector;
-class Document;
-class FontResource;
-
-class FontLoader : public GarbageCollectedFinalized<FontLoader> {
-    USING_PRE_FINALIZER(FontLoader, dispose);
-public:
-    static FontLoader* create(CSSFontSelector* fontSelector, Document* document)
-    {
-        return new FontLoader(fontSelector, document);
-    }
-    ~FontLoader();
-    void dispose();
-
-    void addFontToBeginLoading(FontResource*);
-    void loadPendingFonts();
-    void fontFaceInvalidated();
-    void didFailToDecode(FontResource*);
-
-    DECLARE_TRACE();
-
-private:
-    FontLoader(CSSFontSelector*, Document*);
-    void beginLoadTimerFired(Timer<FontLoader>*);
-    void clearPendingFonts();
-
-    Timer<FontLoader> m_beginLoadingTimer;
-
-    struct FontToLoad;
-    using FontsToLoadVector = HeapVector<Member<FontToLoad>>;
-    FontsToLoadVector m_fontsToBeginLoading;
-    Member<CSSFontSelector> m_fontSelector;
-    WeakMember<Document> m_document;
-};
-
-} // namespace blink
-
-#endif // FontLoader_h