[Webkit-unassigned] [Bug 244828] New: Expose WebKit graphics functionality to WebCore worker threads

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244828

            Bug ID: 244828
           Summary: Expose WebKit graphics functionality to WebCore worker
                    threads
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mattwoodrow at apple.com
        Depends on: 244825
            Blocks: 218482

In order to do GPU rendering from within a WebWorker (bug 218482), we need to be able to create WebKit graphics objects (ChromeClient::createImageBuffer) from the worker thread.

This bug proposes to add a new 'client' WebCoreSupport object 'WorkerClient', which get created for each worker, and allows safe access from the worker thread to a subset of the ChromeClient API.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=218482
[Bug 218482] [GPU Process] Enable worker based ImageBitmap and OffscreenCanvas drawing to use GPU Process rendering
https://bugs.webkit.org/show_bug.cgi?id=244825
[Bug 244825] Allow running IPC::Connection with an 'owning' thread that isn't the main thread
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