Roll src/third_party/skia/ 828ed1777..5e3a63075 (3 commits).

https://chromium.googlesource.com/skia.git/+log/828ed1777da7..5e3a63075397

$ git log 828ed1777..5e3a63075 --date=short --no-merges --format='%ad %ae %s'
2016-09-07 mtklein GN: default to -O1
2016-09-07 msarett Rename SkColorSpace::GammaNamed to SkColorSpace::RenderTargetGamma
2016-09-07 msarett Revert of Add color xform support to SkWebpCodec (patchset #2 id:80001 of https://codereview.chromium.org/2294993002/ )

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

Review-Url: https://codereview.chromium.org/2319553004
Cr-Commit-Position: refs/heads/master@{#417192}

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': '828ed1777da74692d0c8a5834017929f5aedcc6b',
+  'skia_revision': '5e3a63075397f641536b2e463ad25d87bec6b112',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.