Roll src/third_party/skia/ a8966a8a3..9daa4b92d (6 commits).
Roll src/third_party/skia/ a8966a8a3..9daa4b92d (6 commits).

https://chromium.googlesource.com/skia.git/+log/a8966a8a34f3..9daa4b92d73a

$ git log a8966a8a3..9daa4b92d --date=short --no-merges --format='%ad %ae %s'
2016-05-09 bsalomon No error if function marked with SK_WARN_UNUSED_RESULT is used in SkAssertResult GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1955263002
2016-05-09 egdaniel Reset layout to undefined when we realloc VkTexture memory
2016-05-09 liyuqian Initial commit of our new Android app to demo Skia.
2016-05-09 bungeman Less indentation.
2016-05-09 halcanary harfbuzz test: compile fewer files
2016-05-09 halcanary DEPS: update icu + sfntly

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

Review-Url: https://codereview.chromium.org/1961003003
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#392388}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk