Roll external/skia 12818515b..525aa0ca6 (2 commits)
Roll external/skia 12818515b..525aa0ca6 (2 commits)

https://skia.googlesource.com/skia.git/+log/12818515b..525aa0ca6

2019-06-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src f75363e40fb1..ce989eacabd7 (360 commits)
2019-06-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 98f2167125a8..2dd40a44d1a6 (8 commits)

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: Id11329ecf07439102b62f01b01353ee788cc5102
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia