Roll external/skia 4a3f1fe4e..1c0ea2893 (1 commits)
Roll external/skia 4a3f1fe4e..1c0ea2893 (1 commits)

https://skia.googlesource.com/skia.git/+log/4a3f1fe4e..1c0ea2893

2018-11-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 18a84258b13d..46988abef6c8 (1 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: I9557003e3e678326534a1d7a89847236416c6690
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.

Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_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,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia