Roll src/third_party/skia/ 5f544345d..ae6e4869c (9 commits).

https://chromium.googlesource.com/skia.git/+log/5f544345d653..ae6e4869c945

$ git log 5f544345d..ae6e4869c --date=short --no-merges --format='%ad %ae %s'
2016-09-22 jvanverth Revert of Some Vulkan memory fixes and cleanup (patchset #2 id:20001 of https://codereview.chromium.org/2356343003/ )
2016-09-22 msarett G instead of R, thanks Gold
2016-09-22 caryclark don't close a contour with a line if nothing's there
2016-09-22 jvanverth Some Vulkan memory fixes and cleanup
2016-09-22 hcm Update Chrome section to include Skia roll/sheriff/bug info
2016-09-22 robertphillips Make AALinearizingConvexPathRenderer able to handle stroke and fill
2016-09-22 bsalomon Change implementation of flush-count based GrGpuResource purging
2016-09-22 csmartdalton skpbench fixes for linux
2016-09-22 msarett Add BGRA as input format to SkColorSpaceXform

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

Review-Url: https://codereview.chromium.org/2359333002
Cr-Commit-Position: refs/heads/master@{#420485}

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': '5f544345d653900ef30212ea1c243947be8bb074',
+  'skia_revision': 'ae6e4869c94596eb3bf5069888b32ab06199aec0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.