Roll src/third_party/skia/ 627769144..5e1ddb108 (2 commits).

https://chromium.googlesource.com/skia.git/+log/627769144d23..5e1ddb108638

$ git log 627769144..5e1ddb108 --date=short --no-merges --format='%ad %ae %s'
2015-12-21 reed Reland of change all factories to return their base-class (patchset #1 id:1 of https://codereview.chromium.org/1540203002/ )
2015-12-21 caryclark fix stroked text underline / strikethrough

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

Review URL: https://codereview.chromium.org/1543633002

Cr-Commit-Position: refs/heads/master@{#366435}
1 file changed