Roll src/third_party/skia/ fc6cb7366..9a44565e9 (1 commit).

https://chromium.googlesource.com/skia.git/+log/fc6cb7366493..9a44565e9946

$ git log fc6cb7366..9a44565e9 --date=short --no-merges --format='%ad %ae %s'
2016-08-30 bsalomon Remove custom data from GrGpuResource

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

Review-Url: https://codereview.chromium.org/2290383002
Cr-Commit-Position: refs/heads/master@{#415349}

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': 'fc6cb7366493665dce96c5d66e67e94924b21cb6',
+  'skia_revision': '9a44565e9946629c4ee776fb859d168eb953da71',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.