[Webkit-unassigned] [Bug 67750] New: Create a delegate class to help cleanly isolate the chromium compositor API

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67750

           Summary: Create a delegate class to help cleanly isolate the
                    chromium compositor API
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: shawnsingh at chromium.org
                CC: jamesr at chromium.org, piman at chromium.org,
                    vangelis at chromium.org, enne at google.com,
                    nduca at chromium.org


First-attempt patch will be uploaded in a moment.

Essentially this delegate hides the layer stuff in WebCore from the chromium compositor.  For now, it only has functions that the compositor was actually using.  (had to rename them to avoid name conflicts between GraphicsLayer and CCLayerDelegate).   Additionally this delegate will make stubbing/mocking easier for unit testing the compositor.

In theory, there are no changes to the actual semantics of the code.  All tests passed on OS X.  Are there other tests we should include?

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