Unify Resource loading status tracking

third_party/WebKit/Source/core/fetch/ImageResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 46 matching lines @@
     }
 
     // Exposed for testing
     static PassRefPtrWillBeRawPtr<ImageResource> create(const ResourceRequest& request, blink::Image* image)
     {
         return adoptRefWillBeNoop(new ImageResource(request, image, ResourceLoaderOptions()));
     }
 
     ~ImageResource() override;
 
-    void load(ResourceFetcher*) override;
-
     blink::Image* getImage(); // Returns the nullImage() if the image is not available yet.
     bool hasImage() const { return m_image.get(); }
 
     static std::pair<blink::Image*, float> brokenImage(float deviceScaleFactor); // Returns an image and the image's resolution scale factor.
     bool willPaintBrokenImage() const;
 
     bool usesImageContainerSize() const;
     bool imageHasRelativeSize() const;
     // The device pixel ratio we got from the server for this image, or 1.0.
     float devicePixelRatioHeaderValue() const { return m_devicePixelRatioHeaderValue; }
@@ skipping 21 matching lines @@
 
     void appendData(const char*, size_t) override;
     void error(Resource::Status) override;
     void responseReceived(const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) override;
     void finish() override;
 
     // For compatibility, images keep loading even if there are HTTP errors.
     bool shouldIgnoreHTTPStatusCodeErrors() const override { return true; }
 
     bool isImage() const override { return true; }
-    bool stillNeedsLoad() const override { return !errorOccurred() && getStatus() == Unknown && !isLoading(); }
 
     // ImageObserver
     void decodedSizeChanged(const blink::Image*, int delta) override;
     void didDraw(const blink::Image*) override;
 
     bool shouldPauseAnimation(const blink::Image*) override;
     void animationAdvanced(const blink::Image*) override;
     void changedInRect(const blink::Image*, const IntRect&) override;
 
     // MultipartImageResourceParser::Client
@@ skipping 44 matching lines @@
     RefPtr<blink::Image> m_image;
     MultipartParsingState m_multipartParsingState = MultipartParsingState::WaitingForFirstPart;
     bool m_hasDevicePixelRatioHeaderValue;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(Image);
 
 } // namespace blink
 
 #endif