[Webkit-unassigned] [Bug 121696] New: Add an argument to ImageSource::createFrameAtIndex to hint a decoder that we expect a scaled image.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=121696

           Summary: Add an argument to ImageSource::createFrameAtIndex to
                    hint a decoder that we expect a scaled image.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: yongjun_zhang at apple.com


Some platform image decoders have the capability to decode an image in different scale levels.  If we are going to paint an image in scaled down size, we can hint the decoder to give the image in the right scale to save some memory.

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