[Webkit-unassigned] [Bug 121068] New: On ImageDocument, checking for FrameView is needed before ShrinkToFit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=121068

           Summary: On ImageDocument, checking for FrameView is needed
                    before ShrinkToFit
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ktf.kim at samsung.com


Created an attachment (id=211136)
 --> (https://bugs.webkit.org/attachment.cgi?id=211136&action=review)
PNG image

When you load a image like  file:///PNG.png, the ImageDocument is generated, 
then if it should shrink to fit, the scale for the image to fit is calculated, and the image's size is inserted.

However, if ImageDocument::imageUpdated is called before the FrameView's size is not yet updated,
the scale is calculated as 0 on ImageDocument::scale, and the image's size is set to 0 on ImageDocument::resizeImageToFit.
Then the size is not changed after that because ImageDocument::m_imageSizeIsKnown is set.

So, in this case, check the FrameView's size and  not to set ImageDocument::m_imageSizeIsKnown is needed.

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