Roll engine deef2663aca4..e8d71b4d2ff0 (15 commits)

[engine-flutter-autoroll]

flutter/engine@deef266...e8d71b4

git log deef266..e8d71b4 --first-parent --oneline
2020-04-14 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from 8JtFK... to X4B0z... (flutter/engine#17701)
2020-04-14 skia-flutter-autoroll@skia.org Roll src/third_party/dart 4aa896464a48..3e43a3dcadf9 (3 commits) (flutter/engine#17698)
2020-04-14 skia-flutter-autoroll@skia.org Roll src/third_party/skia f50063625a0c..ad653d8378d7 (3 commits) (flutter/engine#17697)
2020-04-14 skia-flutter-autoroll@skia.org Roll src/third_party/skia 4f17b60208fa..f50063625a0c (1 commits) (flutter/engine#17696)
2020-04-14 skia-flutter-autoroll@skia.org Roll src/third_party/dart 2aecf30d2b2e..4aa896464a48 (26 commits) (flutter/engine#17694)
2020-04-14 robert.ancell@canonical.com Move Linux shell docstrings to headers (flutter/engine#17410)
2020-04-14 skia-flutter-autoroll@skia.org Roll src/third_party/skia f3953d04a0b8..4f17b60208fa (9 commits) (flutter/engine#17693)
2020-04-14 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from G7eYf... to 8JtFK... (flutter/engine#17689)
2020-04-13 aam@google.com In tests run dart code on ui(rather than on platform) thread. (flutter/engine#17686)
2020-04-13 skia-flutter-autoroll@skia.org Roll src/third_party/skia d468a1619a2f..f3953d04a0b8 (11 commits) (flutter/engine#17685)
2020-04-13 gw280@google.com Use VK_LAYER_KHRONOS_validation only on Fuchsia (flutter/engine#17683)
2020-04-13 ferhat@gmail.com [web] Fix compositing order when adding paragraph tags (flutter/engine#17645)
2020-04-13 30870216+gaaclarke@users.noreply.github.com Made it so unit tests can be written against all ios engine code. (flutter/engine#17624)
2020-04-13 gw280@google.com Enable required extension
2020-04-13 skia-flutter-autoroll@skia.org Roll src/third_party/dart c9710e5059ad..2aecf30d2b2e (1 commits) (flutter/engine#17680)

If this roll has caused a breakage, revert this CL and stop the roller
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Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

[skia-gold]

Gold has detected one or more untriaged digests on patchset 16.
Please triage them at https://flutter-gold.skia.org/search?issue=54764.

[fluttergithubbot]

Golden file changes have been found for this pull request. Click here to view and triage (e.g. because this is an intentional change).

Changes to golden files are considered breaking changes, so consult Handling Breaking Changes to proceed. While there are exceptions to this rule, if this patch modifies an existing golden file, it is probably not an exception. Only new golden file tests, or downstream changes like those from skia updates are considered non-breaking.

For more guidance, visit Writing a golden file test for package:flutter.

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.

Changes reported for pull request #54764 at sha bf9fce0

[fluttergithubbot]

This pull request is not suitable for automatic merging in its current state.

• The status or check suite hostonly_devicelab_tests-3_last-linux has failed. Please fix the issues identified (or deflake) before re-applying this label.

[fluttergithubbot]

This pull request is not suitable for automatic merging in its current state.

• The status or check suite hostonly_devicelab_tests-3_last-linux has failed. Please fix the issues identified (or deflake) before re-applying this label.

[engine-flutter-autoroll]

Commit queue failed; closing this roll.