Roll external/skia cf5c51bcd..1333fc5af (5 commits)

https://skia.googlesource.com/skia.git/+log/cf5c51bcd..1333fc5af

2018-10-19 brianosman@google.com Remove unused SkBitmapCacheDesc factory
2018-10-19 egdaniel@google.com Add ability for an SkDevice to handle the drawing of an SkDrawable.
2018-10-19 egdaniel@google.com Revert "ccpr: Unregister path listeners when their cache entries are evicted"
2018-10-19 bsalomon@google.com Revert "Revert "Use OpenGL sampler objects when available.""
2018-10-19 kjlubick@google.com [canvaskit] Disable effect_deserialization

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https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

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Change-Id: I242bb46eea609318efbe55dcc9660a179e137bea
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