[Webkit-unassigned] [Bug 261296] New: Associate a purpose for each GraphicsContextState in the context state stack

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261296

            Bug ID: 261296
           Summary: Associate a purpose for each GraphicsContextState in
                    the context state stack
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

We internally call GraphicsContext::save() when we begin a transparency layer and we call GraphicsContext::restore() when we end the transparency layer.

Differentiating when this happens from normal save/restore will make it easy to unwind the stack of the GraphicsContextState and the transparency layers in the right order.

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