Roll src/third_party/skia/ c61edcc2b..dfed06f6f (2 commits).
Roll src/third_party/skia/ c61edcc2b..dfed06f6f (2 commits).

https://chromium.googlesource.com/skia.git/+log/c61edcc2b8b6..dfed06f6ff5a

$ git log c61edcc2b..dfed06f6f --date=short --no-merges --format='%ad %ae %s'
2016-03-28 benjaminwagner Make SkFixed private.
2016-03-28 rmistry Skip toolchain downloads for a few android tools.

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

Review URL: https://codereview.chromium.org/1840733002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#383538}

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