[Webkit-unassigned] [Bug 155566] New: Make the ImageFrameDecoder notifies the image observer when an frame image changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=155566

            Bug ID: 155566
           Summary: Make the ImageFrameDecoder notifies the image observer
                    when an frame image changes
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com

With the synchronous image, CachedImage::finishLoading() notifies the observers (which are the renderers) by calling CachedImage::notifyObservers(). With the asynchronous we need to do the same when a frame image finished decoding. Since ImageSource has a reference to an Image object, and the Image::m_observer is actually an instance of CachedImage, the calling sequence should be straightforward.

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