[Webkit-unassigned] [Bug 58621] New: Update webglcontextlost / webglcontextrestored delivery to match spec changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=58621

           Summary: Update webglcontextlost / webglcontextrestored
                    delivery to match spec changes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kbr at google.com
                CC: cmarrin at apple.com, zmo at google.com,
                    amarinichev at chromium.org


Based on feedback from Glenn Maynard, the WebGL spec was just updated to avoid side-effects of registering event handlers. Now, in order for webglcontextrestored to be delivered to the application, the developer must have registered a webglcontextlost handler, and that handler needs to call preventDefault() against the event object. WebKit's WebGL implementation needs to be updated to track this change, and ideally layout tests written using the WEBKIT_lose_context extension either created or updated.

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