Reviewed by NOBODY (OOPS!).

    Reviewed by NOBODY (OOPS!).

	- replace use of CGCompositeOperation SPI with NSCompositingOperation API

        * WebCoreSupport.subproj/WebImageData.h:
        * WebCoreSupport.subproj/WebImageData.m:
        (-[WebImageData _fillSolidColorInRect:compositeOperation:context:]):
        (-[WebImageData _PDFDrawFromRect:toRect:operation:alpha:flipped:context:]):
        * WebCoreSupport.subproj/WebImageRenderer.m:
        (-[WebImageRenderer drawImageInRect:fromRect:]):
        (-[WebImageRenderer drawImageInRect:fromRect:compositeOperator:context:]):
        * WebCoreSupport.subproj/WebImageRendererFactory.m:
        (-[WebImageRendererFactory CGCompositeOperationInContext:]):
        (-[WebImageRendererFactory setCGCompositeOperation:inContext:]):
        (-[WebImageRendererFactory setCGCompositeOperationFromString:inContext:]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@9269 268f45cc-cd09-0410-ab3c-d52691b4dbfc