Skia roll acc1258:b511042

https://skia.googlesource.com/skia/+log/acc125860053d0a65bc7b67dd1b886aa7932d292..b511042bb07a6a289b0d1146cb57f6e8b80580d6

CQ_EXTRA_TRYBOTS=tryserver.chromium.linux:linux_layout_rel
TBR=bungeman@google.com
BUG=

Review URL: https://codereview.chromium.org/456703002

Cr-Commit-Position: refs/heads/master@{#288349}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288349 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -46,7 +46,7 @@ vars = {
   "lss_revision": "31",
   "sfntly_revision": "239",
   "lighttpd_revision": "33737",
-  "skia_revision": "acc125860053d0a65bc7b67dd1b886aa7932d292",
+  "skia_revision": "b511042bb07a6a289b0d1146cb57f6e8b80580d6",
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.