Roll external/skia e95604945..98385ba6c (8 commits)

https://skia.googlesource.com/skia.git/+log/e95604945..98385ba6c

2019-02-06 jvanverth@google.com Switch back to non-Retina display resolution.
2019-02-06 mtklein@google.com sketch SkVx
2019-02-06 benjaminwagner@google.com Add DDL jobs for Intel
2019-02-06 ethannicholas@google.com fixed SRGB effect color accuracy
2019-02-06 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-06 brianosman@google.com Remove all references to jsoncpp (build scripts, DEPS, etc)
2019-02-06 brianosman@google.com Convert bookmaker to SkJSON
2019-02-06 recipe-roller@chromium.org Roll recipe dependencies (trivial).

The AutoRoll server is located here: https://autoroll-internal.skia.org/r/android-master-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

Test: Presubmit checks will test this change.
Change-Id: If0f8e5c5dce5b75f23a7380fc2e8f92794c61b5e
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.