[Webkit-unassigned] [Bug 164663] New: ImageData does not match specification

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=164663

            Bug ID: 164663
           Summary: ImageData does not match specification
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org
                CC: simon.fraser at apple.com

The HTML Canvas 2D Context spec <https://www.w3.org/TR/2dcontext/> now has:

interface ImageData {
  readonly attribute unsigned long width;
  readonly attribute unsigned long height;
  readonly attribute Uint8ClampedArray data;
};

We are handling these values as signed in WebCore, so we need to correct them to only accept unsigned values.

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