Roll src/third_party/skia/ 82ecc5773..8ffab6fc0 (1 commit).

https://chromium.googlesource.com/skia.git/+log/82ecc5773faa..8ffab6fc0eff

$ git log 82ecc5773..8ffab6fc0 --date=short --no-merges --format='%ad %ae %s'
2016-04-26 borenet Whitespace change to trigger bots after recipe fix

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
TBR=stephana@google.com

Review URL: https://codereview.chromium.org/1918243003

Cr-Commit-Position: refs/heads/master@{#389876}

DEPS

@@ -39,7 +39,7 @@ 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': '82ecc5773faa0068186557f8ab2957620a7d72ea',
+  'skia_revision': '8ffab6fc0effa9b467584bf3bf9d7d0345e2aeb9',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.