[Webkit-unassigned] [Bug 79948] New: [Chromium] Release accelerated Canvas2D GPU resources for backgrounded tabs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79948

           Summary: [Chromium] Release accelerated Canvas2D GPU resources
                    for backgrounded tabs
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: twiz at chromium.org
                CC: mdelaney at apple.com, twiz at chromium.org


Recent work has landed changes that purge the Ganesh texture cache when a page is backgrounded.  See crbug.com/114801.

The purge is not sufficient, because any rendering that takes place in backgrounded tabs will result in the Ganesh cache being re-populated.  The cache size needs to be set to zero for canvases residing in backgrounded tabs.

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