Roll src/third_party/skia/ 43d665111..046cb56c6 (3 commits).

https://chromium.googlesource.com/skia.git/+log/43d665111137..046cb56c6c1b

$ git log 43d665111..046cb56c6 --date=short --no-merges --format='%ad %ae %s'
2016-09-16 mtklein GN: build get_images_from_skps.
2016-09-16 cblume Keeping asserts in release.
2016-09-16 bsalomon Allow GrCaps access from GrDrawContext GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2348923002

BUG=643845

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

Review-Url: https://codereview.chromium.org/2342213003
Cr-Commit-Position: refs/heads/master@{#419230}

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': '43d6651111374b5d1e4ddd9030dcf079b448ec47',
+  'skia_revision': '046cb56c6c1bb40779c81b115271ed0e8196b48b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.