Roll src/third_party/skia/ 73106225d..570f8af47 (1 commit).

https://chromium.googlesource.com/skia.git/+log/73106225d1fc..570f8af47305

$ git log 73106225d..570f8af47 --date=short --no-merges --format='%ad %ae %s'
2016-07-30 mtklein Revert of Added distance vector support for CircleGeometryProcessor (patchset #4 id:60001 of https://codereview.chromium.org/2190023002/ )

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=tomhudson@google.com

Review-Url: https://codereview.chromium.org/2195183002
Cr-Commit-Position: refs/heads/master@{#408878}

DEPS

@@ -36,7 +36,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '73106225d1fc3faadf959f7ab24271e1ee7f44ce',
+  'skia_revision': '570f8af4730578db79fbb7842389178f85dd8699',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.