[Webkit-unassigned] [Bug 187268] New: [GTK] Layout test compositing/backing/backing-store-attachment-outside-viewport.html is failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187268

            Bug ID: 187268
           Summary: [GTK] Layout test
                    compositing/backing/backing-store-attachment-outside-v
                    iewport.html is failing
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org, magomez at igalia.com,
                    zan at falconsigh.net

Layout test compositing/backing/backing-store-attachment-outside-viewport.html was added in r233268 "https://hackernoon.com/ uses lots of layer backing store" is failing for GTK with the following diff:

--- /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/compositing/backing/backing-store-attachment-outside-viewport-expected.txt
+++ /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/compositing/backing/backing-store-attachment-outside-viewport-actual.txt
@@ -18,13 +18,13 @@
           (position 8.00 1613.00)
           (bounds 600.00 600.00)
           (drawsContent 1)
-          (backingStoreAttached 0)
+          (backingStoreAttached 1)
         )
         (GraphicsLayer
           (position 8.00 3213.00)
           (bounds 600.00 600.00)
           (drawsContent 1)
-          (backingStoreAttached 0)
+          (backingStoreAttached 1)
         )
       )
     )

I don't know anything, but I assume that means we are using memory to hold content that is not drawn, so perhaps this is of interest to the graphics folks.

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