[Webkit-unassigned] [Bug 254013] New: keep decoded image data for background tabs in volatile memory

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=254013

            Bug ID: 254013
           Summary: keep decoded image data for background tabs in
                    volatile memory
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Process Model
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heycam at apple.com

Currently with full GPU process enabled, any images we draw will result in ShareableBitmaps that are held on to by the Web process until their owning NativeImage is destroyed.  This decoded image data is often not needed when a tab has gone into the background.  Let's try moving the decoded data into volatile memory once tabs go into the background, to reduce our footprint.

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