Remove occluder parameter from SkMaskFilter::MakeBlur factory

I've cleaned up the call sites in Chrome so we should be able to remove this

Change-Id: I945c0cd54647b20f47012c26f31667b4dd6a07f0
Reviewed-on: https://skia-review.googlesource.com/148662
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed